Genius Jnr - Use the following information to answer the next question. The way in which an object shines when light falls on it is known as its luster. It is the visual property of an object. Which of the following materials has a dull luster?

we're on twitter about

member? login join us!

preparing for upcoming exams? improve yourself with our FREE quiz and practise questions

registration for

geniusjnr national olympiads

is now FREE

start your preparation and compete with the smartest students in India

Use the following information to answer the next question.

The way in which an object shines when light falls on it is known as its luster. It is the visual property of an object.

Which of the following materials has a dull luster?

or

similar questions

Show Zinc Active Metal Copper Correct Procedure 1 Add Dilute Nitric Acid Strips Metals 2 Observe Tra Write Standard Form Cubic Polynomial Real Coefficients Parachutist Descending Vertically Makes Angles Elevation 45 60 Two Observing Points 100 Apart Left S 2 1 Centroid Triangle Vertices X 0 5 2 8 X Satisfy Relation 3x 8y 0 B 3x 8y 0 C 8x 3y 0 8x 3y Centroid Triangle Formed Points 3 5 7 4 10 K Point K 1 K 3 B 1 C 2 4 Use Following Information Answer Next Question Metals React Oxygen Produce Metal Oxides However Meta Use Following Information Answer Next Question Metals React Water Produce Gas Information Alternativ Points P X Equidistant 5 1 B 1 5 5x B X 5y C 3x 2y 2x 3y Points X 4 Lies Circle Whose Centre Origin Radius 5 X 5 B 3 C 0 4 P Point X Axis Distance Origin 3 Units Coordinates Point Q Oy Op Oq 0 3 B 3 0 C 0 0 0 3 Following Chemical Equations Correctly Represents Reaction Iron Water Ratio 4 5 Divides Join 2 3 7 8 2 3 B 3 2 C 3 2 2 3 Centroid Triangle 1 4 Two Vertices 4 3 9 7 Area Triangle 183 Sq Units B 1832 Sq Units C 366 Sq Units Following Equations Represents Single Displacement Reaction Use Following Information Answer Next Question General Chemical Equation Displacement Reaction Writt X 1x 5 Find Value X3 1x3 Use Following Information Answer Next Question Megan Wants Replace Handle Frying Pan Using Goes Mark B 10 Ab 21 Find Value A3 B3 Use Following Information Answer Next Question Nicole Breaks Clinical Thermometer Finds Bulb Thermom Given Figure Z Terms X X 180 B X 180 C 180 X X 360 Given Figure Ab Bc X 18 B 22 C 25 32 Measures Angles Triangle Ratio 3 4 5 Measure Smallest Angle Triangle 25 B 30 C 45 60 Following Materials Malleable Given Figure Ec Ab Ecd 70 Bdo 20 Obd 20 B 50 C 60 70 Use Following Information Answer Next Question Aluminium Foils Used Wrapping Food Items Following Pr Abc 50 Bc Produced Point Bisectors Abc Acd Meet E E 25 B 50 C 100 75 Bisects Exterior Angle B C Abc Meet X Boc 90 X 2 B 90 X 2 C 180 X 2 180 X 2 Line Segments Ab Cd Intersect Ac Db Cab 45 Cdb 55 Bod 100 B 80 C 90 135 Bisectors Acute Angles Right Triangle Meet Angle Two Bisectors 45 B 95 C 135 90 Abc 60 B 80 Bisectors B C Meet Boc 60 B 120 C 150 30 Exterior Angle Triangle 108 Interior Opposite Angles Ratio 4 5 Angles Triangle 48 60 72 B 50 60 70 C Abc 100 Ad Bisects Ad Bc B 50 B 90 C 40 100 Sides Triangle Produced Order Sum Three Exterior Angles Formed 90 B 180 C 270 360 Triangle Exterior Angle Vertex 95 One Interior Opposite Angle 55 Measure Interior Angle 55 B 85 C 40 Production Oil Lakh Tonnes Refineries India 1982 Given Refinery Barauni Koyali Mathura Mumbai Florid Number Times Particular Item Occurs Given Data Called Variation B Frequency C Cumulative Frequency C Difference Upper Lower Class Limits Called Mid Points B Class Size C Frequency Mean Following Ages 360 Patients Getting Medical Treatment Hospital Day Age Years 10 20 20 30 30 40 40 50 Daily Maximum Temperatures Degree Celsius Recorded Certain City Month November Follows 25 8 24 5 25 Use Following Information Answer Next Question Oxide Acidic Basic Information Alternative Completes Following Substances React Water Use Following Information Answer Next Question Metal X Undergoes Following Reaction Salt Solution Me Use Following Information Answer Next Question Put Dilute Hydrochloric Acid Metal X Reacts Produce H Use Following Information Answer Next Question Megan Wants Replace Handle Frying Pan Using Goes Mark Outsourcing Represent New Mode Business Business Considered Economic Activity Partnership Considered Relatively Unpopular Form Business Ownership Explain Merits Limitations Partn Following Alone Ensure Effective Ethics Programme Business Enterprise Publication Code B Involvement Build Argument Social Responsibilities Difference Gdr Adr Explain Commercial Paper Advantages Limitations Meant Term Promotion Discuss Legal Position Promoters Respect Company Promoted Purpose Served Wholesalers Providing Warehousing Facilities Use Following Information Answer Next Question Metals Good Thermal Conductors Metal Heated Atoms Gai Single Displacement Reaction Among Following Reactions Use Following Information Answer Next Question Jonathan Constructs Setup Shown Figure Time Drawing P Barium Nitrate Ba No3 2 Mixed Sodium Fluoride Naf Aqueous Solution Following Compounds Obtained Use Following Information Answer Next Questions Displacement Reactions Involve Replacement Atom Grou Use Following Information Answer Next Question Given Equation Represents Reaction Sodium Metal Water Use Following Information Answer Next Question Little Amount Carbon Phosphorus Potassium Sulphur Bur Following Properties Chemical Property Metals Excessive Irrigation Lead Soil Salinity Roughage Differ Concentrates Reference Cattle Feed Write Differences Nucleus Nucleoid Write Names Cell Organelles Draw Well Labelled Diagram Parenchyma Collenchyma Name Different Types Elements Found Xylem Help Flow Chart Depict Five Kingdoms Classification Write Four General Characters Porifera Give Two Examples Define Diarrhoea Give Account Occurrence Symptoms Prevention Control Ailment Solid Density 900 Kg M3 Floats Oil Shown Given Diagram Oil Floats Water Density 1000 Kg M3 Shown Den Rectangle Wooden Block Length Breadth Height 50 Cm 25 Cm 10 Cm Respectively Wooden Block Kept Ground Fill Following Blanks Suitable Words Work Measured Product B Work Done Body Moving Circular Path C 1 Kind Energy Possessed Following Stone Kept Roof Top B Running Car C Water Stored Reservoir Dam Compr Work Done Force Moving Object Distance 20 Cm 24 2 J Magnitude Force Simplify 534 4512 316 Find Difference 7 523 Zinc Reacts Dilute Hydrochloric Acid Use Following Information Answer Next Question Marks 1 Happen Given Granules Test Tube Subtract 27 86 53 74 Three Days Week Rickshaw Puller Earns Rs 32 60 Rs 56 80 Rs 72 Respectively Total Earning Days Convert Following Mixed Fraction 3 108 Following Changes Occurs Metals React Nitric Acid Use Following Information Answer Next Question G Given Figure Represents Dilute Hydrochloric Acid Added Iron Filings Use Following Information Answer Next Question Four Metal Rods Made Lead Zinc Gold Silver Equal Thic Use Following Information Answer Next Question Given Table Lists Various Types Oxides Along Examples Use Following Information Answer Next Question Three Test Tubes Taken Labeled X Z Test Tubes Amount Use Following Information Answer Next Question Given Activity Following Compounds Cannot X Element X Reacts Oxygen Forming X2o Dissolves Water Give Compound Compound Turns Red Litmus Blue Rea Magnesium Reacts Water Form Type Oxide Use Following Information Answer Next Question Zinc Displaces Copper Iron Salt Solutions Iron Also D Use Following Information Answer Next Question Potassium Hydroxide Reacts Sulphuric Acid Produce Pot Following Materials Dull Appearance Following Materials Malleable Following Properties General Property Metals Use Following Information Answer Next Question Aluminium Foils Used Wrapping Food Items Following Pr Following Materials Beaten Thin Sheets Use Following Information Answer Next Question Materials Classified Metals Non Metals Basis Differen Following Metals Cannot Displace Copper Copper Sulphate Solution Alternative Metal Paired Non Metal Use Following Information Answer Next Question Iron Rod Kept Vessel Contains Boiling Water Shown Giv Information Inwhich Alternative Incorrectly Matched Use Following Information Answer Next Question Aluminium Foils Used Wrapping Food Items Following Pr Following Statements Incorrect Following Materials Malleable Use Following Information Answer Next Question Piece Charcoal Heated Certain Gas Evolved Evolved Gas Use Following Information Answer Next Question Ranja Carried Reactions Chemistry Lab Noted Following Following Metals Neither Malleable Ductile Following Statements Correct Following Statements Cannot Attributed Non Metals Following Statements Correct Following Compounds Produced Highest Amounts Metal Exposed Air Following Metals React Dilute Hydrochloric Acid Heating Use Following Information Answer Next Question Assignment Rajesh Find Nature Substance Used Make Thi Use Following Information Answer Next Question Element Use Nitrogen 1 Used Fertilisers Ii Aluminium Following Reactions Represents Double Displacement Reaction Following Substances Malleable Copper Sulphur Answer Following Questions Write Reaction Magnesium Oxygen Sulphuric Acid B Explain Nature Product F Oxide Acidic Nature Sulphur Oxide Copper Oxide Differentiate Metals Non Metals B Ores Draw Flowchart Showing Processes Involved Extraction Various Aqueous Solution Lead Ii Nitrate Reacts Aqueous Solution Ferric Sulphate Form Aqueous Solution Ferri Name Metal Liquid Room Temperature Little Amount Iron Fillings Added Solution Aluminium Sulphate Predict Whether Reaction Take Place Gi Potassium Kept Immersed Kerosene Oil Potassium Reacts Water Produce Gas Also Produced Sulphuric Acid Amphoteric Oxides Give Example Following Beaten Thin Sheets Pencil Lead Silver Aluminium Coal Gas Evolved Metals React Acids Metals Soft Yes Name Given Figure Show Happen Copper Vessel Exposed Moist Air Choose Correct Statements Metals React Vigorously Air Water Stored Kerosene Ii Non Metals React Wate State Whether True False Non Metals Beaten Thin Sheets Ii Touch Hot Metallic Part Pan Get Hurt Iii A Fill Blanks Zinc Replaces Copper Copper Sulphate Solution Reaction Type Reactions Reactive Metal Dis Match Following Non Metals Trains Cars Metals Crackers Fertilisers Mercury Wrapping Food Aluminium T Write Three Differences Metals Non Metals State Whether True False Air Insulator Ii Wood Insulator Iii Vinegar Poor Conductor Iv Aluminium Goo Bags Containing Food Items Flushed Nitrogen Gas Balance Following Chemical Equations B C E Label Following Reactions According Types Explain Answers B C E Mercury Different Metals List Four Differences Physical Properties Metals Non Metals Metals Good Conductors Electricity Name Products Formed Sodium Hydrogen Carbonate Heated Ii Write Chemical Equation Reaction Involved Observed Solution Potassium Iodide Added Solution Lead Nitrate Taken Test Tube Ii Type Reaction Iii Observed Solution Potassium Iodide Added Solution Lead Nitrate Taken Test Tube Ii Type Reaction Iii Observed Solution Potassium Iodide Added Solution Lead Nitrate Taken Test Tube Ii Type Reaction Iii Colour Ferrous Sulphate Crystals Colour Change Heating B Name Products Formed Strongly Heating Ferr Explain Examples Causes Inequality India People Fight Elections Without Support Political Parties Called Explain Formation Different Types Rocks Give Examples Majority Party Diagram Solar System Harmful Effects Believing Stereotypes Governor Enjoys Special Powers Powers Explain Write Opinion Gender Stereotypes Hydrosphere Comprised Continent Equator Tropic Cancer Tropic Capricorn Passing Weekly Markets Offer Would Find Mall Fulfil Duty Towards Providing Education Municipal Corporation Runs Several Schools 11 Cos 3x Dx Cos2 Nx Dx 01tan 1 X1 X2 Dx 02 Ex Cos 4 X2 Dx 0 2a2 Cos2 X B2 Sin2 X Dx Area Bounded Parabola Y2 4ax Latusrectum X Axis 0 B 43a2 C 23a2 A23 Area Enclosed Curves Loge X E X Loge 1y X Axis 2 B 1 C 4 None Find Area Region First Quadrant Enclosed X Axis Line X Circle X2 Y2 32 Food Items Curd Juices Citrus Fruits Stored Metallic Containers Rahul Added Piece Calcium Water Observed Started Floating Reason Give Experiment Show Hydrogen Gas Produced Metals React Acid Use Following Information Answer Next Question Certain Metal Vigorously Reacts Oxygen Room Temperatu Little Amount Iron Fillings Added Solution Aluminium Sulphate Predict Whether Reaction Take Place Gi Potassium Kept Immersed Kerosene Oil Potassium Reacts Water Produce Gas Also Produced Sulphuric Acid Three Elements X Z Atomic Numbers 12 16 20 Respectively Element Highest Number Valence Electrons B T Use Following Information Answer Next Question Put Dilute Hydrochloric Acid Metal X Reacts Produce H Following Metals React Hydrochloric Acid Magnesium Ribbon Cleaned Burning Air Give Experiment Show Hydrogen Gas Produced Metals React Acid Name Metal Non Metal Liquid Room Temperature Sour Substances Kept Copper Brass Vessels Understand Precipitation Reaction Give One Example Name Following Metal Used Long Distance Cable Wires Ii Metal Added Gold Harden Iii Metal Forms Two T Match Following Non Metals Trains Cars Metals Crackers Fertilisers Mercury Wrapping Food Aluminium T Student Takes Zinc Granules Test Tube Adds Dilute Hydrochloric Acid Would Observe Colour Zinc Granul State Whether True False Non Metals Beaten Thin Sheets Ii Touch Hot Metallic Part Pan Get Hurt Iii A Answer Following Questions Super Cooled Liquid Ii Write Name Alloy Used Making Coins B Constructing Following Beaten Thin Sheets Pencil Lead Silver Aluminium Coal Differentiate Metals Non Metals Metals Soft Yes Name Label Following Reactions According Types Explain Answers B C E Write Three Differences Metals Non Metals Name Two Metals Ductile Well Malleable Magnesium Powder React Much Rapidly Magnesium Ribbon Dilute Sulphuric Acid Consider Figures Given Two Cases Bulb Glow Happen Copper Vessel Exposed Moist Air Gas Evolved Metals React Acids Give Reasons Following Metals Regarded Electro Positive Elements Ii Piece Copper Metal Added Solutio Metals Good Conductors Electricity Food Items Curd Juices Citrus Fruits Stored Metallic Containers Choose Correct Statements Metals React Vigorously Air Water Stored Kerosene Ii Non Metals React Wate Name Two Metals React Violently Cold Water Write Three Observations Would Make Metal Dropped Water W Mercury Different Metals Give Reasons Following Copper Used Making Electric Transmission Wire Ii Potassium Iodide Reacts Lead Following Substances Malleable Copper Sulphur Zno Called Amphoteric Oxide Name Another Amphoteric Oxide B Alkalies Give One Example Alkalies List Contains Metals Alloys 1 2 3 4 5 List Ii Contains Uses B C E List Metal Alloy List Ii Uses Alum Identify Type Reaction X Yz Xy Z B X Z Test Tubes Reaction Take Place Write Balanced Chemical Equations Reactions Colour Name Precipitate Formed Write Balanced Chemical Equation Reaction Given Chemical Reaction Example Type Reaction Sea Water Added Solution Silver Nitrate White Precipitate Formed Explain Rohan Studied Displacement Reactions Class Elder Brother Told Performing Experiment Chemistry Labora Example Neutralisation Reaction Name Given Reaction White Precipitate Formed Barium Chloride Solution Reacts Sodium Sulphate Solution Name Write Chemica Room Temperature Metals Occur Solid State Comment Statement Given Metals Melt Held Palm Time Aluminium Tin Lead Gallium Zinc Ductility Conductivity Piece Iron Beaten Thin Sheets Whereas Graphite Cannot Complete Given Table Basis Effect Hammering Given Substances Material Change Shape Iron Nail Piece C Copper Vessel Acquire Green Coating Exposed Moist Air Zinc Plate Dipped Copper Sulphate Solution Sometime Reddish Brown Mass Deposited Zinc Plate State Re Magnesium Behave Steam Passed Explain Giving Chemical Equations Metals Used Making Machinery Chemical Nature Evolved Gas Found Provided Dry Cell Bulb Holder Wires Using Objects Distinguish Piece Coal Graphite Essential Life Required Living Beings Breathing Makes 78 Earth Atmosphere Used Manufacturing Fertilizers Used Process Water Purification Recommended Acids Stored Metal Containers Element Reacts Oxygen Form Oxide Dissolves Dilute Hydrochloric Acid Resulting Solution Turns Colour Element X Brittle Also Forms Acidic Oxide Given Elements X Represent Magnesium Copper Sodium Sulphur Metals Lose Shine Exposed Air Long Time Classify Given Elements Basis Nature Oxides Formed Graphite Sodium Magnesium Silicon Non Metal Lustrous Metal Exists Liquid State Slo 1 8 2 1 4 1 1 Property Aluminium Explains Use Making Foils Name Two Metals Easily Cut Help Knife Solution Obtained Given Figures Turn Colour Blue Litmus Solution Red Handle Screw Driver Made Reason Given Objects Must Inserted Circuit Ensure Bulb Glows Phosphorus Stored Water Electric Wires Made Copper Aluminium Name Non Metal Good Conductor Electricity Given Elements Would Yield Basic Oxide P Ca Si Happens Iron Nail Dipped Copper Sulphate Solution Consider Figure Given X Made Rubber Aluminium Two Beakers Contain Colourless Solutions Magnesium Oxide Carbon Dioxide Solutions Beakers Identified Metals Used Making Cooking Utensils Following Reactions Cannot Take Place Give Reasons Justify Answer Iron Zinc Sulphate Iron Sulphate Z Element X Ductile Forms Basic Oxide Given Elements X Represent Carbon Magnesium Sulphur Silicon Malleability Complete Given Table Using Available Data Metal Used Reaction Hydrochloric Acid Zinc Magnesium Coppe Give Suitable Reasons Answers Aluminium Vessels Lose Shine Time Happens Iron Articles Exposed Moist Air Metal Liquid Room Temperature Mark Correct Alternative Following Added 5 09 Get 5 5 0 41 B 0 59 C 0 49 0 95 Use Following Information Answer Next Question Property Substances Virtue Beaten Thin Sheets Called Mark Correct Alternative Following 0 012 0 15 0 8 B 0 08 C 0 008 0 0018 Mark Correct Alternative Following 0 3 0 3 0 3 2 7 B 0 27 C 0 027 None Mark Correct Alternative Following 5 Kg 5 G Written Decimal Notation 5 5 Kg B 5 05 Kg C 5 005 Kg 5 0 Mark Correct Alternative Following 0 012 1 5 0 8 B 0 08 C 0 008 None Write Expression Following Statements Using Brackets Four Multiplied Sum 13 7 Ii Eight Multiplied Di Simplify Following 7 109 Following Oxides Acidic Nature Simplify Following 9 105 Simplify Following 17 109 Simplify Following 16 108 Following Substances React Sulphuric Acid Mark Correct Alternative Following 102119 Standard Form 67 B 67 C 617 None Mark Correct Alternative Following Rational Number Equal 23 1025 B 10 15 C 96 None Mark Correct Alternative Following Additive Identity Element Set Whole Numbers 0 B 1 C 1 None Mark Correct Alternative Following Following Zero 0 0 B 03 C 7 73 9 0 Mark Correct Alternative Following 38 X 24 Equivalent Rational Numbers X 3 B 6 C 9 12 Mark Correct Alternative Following 27 45 Expressed Rational Number Denominator 5 Numerator 3 B 3 C 6 Following Metals Found Human Blood Point 0 2 Equidistant Points B 3 P C P 5 Find P Cbse 2014 Abcd Rectangle Whose Three Vertices B 4 0 C 4 3 0 3 Find Length One Diagonal Cbse 2014 Point P K 1 2 Equidistant Points 3 K B K 5 Find Values K Cbse 2014 Find Ratio Point P X 2 Divides Join 12 5 B 4 3 Cbse 2014 Prove Diagonals Rectangle Abcd Vertices 2 1 B 5 1 C 5 6 2 6 Equal Bisect Cbse 2014 Find Lengths Medians Ad Abc Whose Vertices 7 3 B 5 3 C 3 1 Cbse 2014 Find Area Circle Whose Circumference 8 Cbse 2014 Find Perimeter Semicircular Protractor Whose Diameter 14 Cm Cbse 2009 Following Substances Poor Conductor Heat Electricity Radii Two Circles 19 Cm 9 Cm Find Radius Circle Circumference Equal Sum Circumferences Two Circles Radii Two Circles 8 Cm 6 Cm Find Radius Circle Area Equal Sum Areas Two Circles Following Non Metallic Substances Highest Melting Point Copper Reacts Concentrated Nitric Acid Produce Acidic Oxides Following Options Represents Correct Se Circumferences Two Circles Ratio 2 3 Ratio Areas Calcium Violently Reacts Water Produce Square Inscribed Circle Find Ratio Areas Circle Square Circumference Circle 8 Cm Find Area Sector Whose Central Angle 72 Two Circular Pieces Equal Radii Maximum Area Touching Cut Rectangular Cardboard Dimensions 14 Cm 7 C Rectangular Sheet Paper Abcd Ab 40 Cm Ad 28 Cm Semicircular Portion Bc Diameter Cut Find Area Remain Given Figure Oabc Square Side 7 Cm Copb Quadrant Circle Centre C Find Area Shaded Region Median 10 12 X 6 18 10 Following Correct 6 X 10 B X 6 C X 18 Either B Use Following Information Answer Next Question Shweta Two Objects E X One Metal Non Metal Beats X Ha Use Following Information Answer Next Question Preeti Two Similar Looking Objects E X Produces Ringi Two Elements Exist Liquid State Mercury Bromine Order Find Metallic Character Shashank Connects Circ Use Following Information Answer Next Question Substance Reacting Sodium Hydroxide Forms Complex Sub Use Following Information Answer Next Question Iron Nails Added Two Beakers X Contain Aqueous Soluti Rajesh Two Different Substances X Test Tube Adds 5 Ml Sulphuric Acid Test Tubes Observes Gas Evolves 10 Cards Numbered 1 10 Card Drawn Randomly Probability Getting Even Numbered Card 110 B 15 C 12 25 Dice Rolled Probability Getting Even Prime 16 B 13 C 12 56 100 Cards Numbered 1 100 Box Card Drawn Box Probability Event 12 Number Favourable Cases Event 20 B Remplissez Les Blancs Use Following Information Answer Next Question Assignment Rajesh Find Nature Substance Used Make Thi Use Following Information Answer Next Question Four Metal Rods Made Lead Zinc Gold Silver Equal Thic Following Elements Used Making School Bells Use Following Information Answer Next Question Ankur Cooking Rice Pan Using Hot Plate Accidently Tou 12 Element Use Nitrogen Used Fertilisers Ii Aluminium B Used Machinery Iii Iron C Used Electrical Wires Name Given Reactions Write General Equation Reaction Solid Right Circular Cone Height 120 Cm Radius 60 Cm Placed Right Circular Cylinder Full Water Heigh Observed Dil Hcl Reacts Magnesium Ii Copper Lustrous Non Metal Low Density Metal Hardest Non Metal Point Distance 13 Cm Centre Circle Radius 5 Cm Ap Aq Tangents Circle P Q Tangent Bc Drawn Point R Ly Two Wires Equal Lengths One Copper Another Brass Thickness One Used Electrical Transmission Lines Ii Copper Aluminium Lead Taken Three Different Test Tubes Concentrated Hno3 Hcl H2o Added Respectively Consider Figures Given Two Cases Bulb Glow Following Elements Lowest Melting Point Aluminium Gallium Copper Gold Neha Burnt Coal Excess Oxygen Allowed Gas Formed Process Pass Blue Litmus Solution Observe Change Rahul Wants Make Electrical Circuit Would Prefer Bronze Copper Steel Alloy Iron Carbon Would Effect Ductility Steel Level Carbon Increased Complete Given Figure Rajni Carried Reactions Chemistry Lab Element Reaction Warm Hcl Reaction H2so4 Magnesium Yes Yes Cop Metal Used Making Foils Used Decoration Sweets Metal Whose Foils Used Wrapping Food Abundant Metal Earth Crust Mixture Iron Sulphur Formed Thoroughly Grinding 7 G Iron Filings 4 G Sulphur Happen Small Amount Giv Fill Blanks Property Substances Virtue Beaten Thin Sheets Called Characteristic Property React Acids Name Described Acid Name One Acid Causes Acid Rains Identical Blocks Iron Plastic Wood Rubber Placed Sun Interval Time Given Blocks Become Hottest Given Identify Type Reactions Following Reactions Belong 2 Naoh H2so4 Na2so4 2h2o B Mg H2o Mgo H2 Iron Found Human Blood Non Metals Used Making Crackers Graphite Used Manufacture Pencil Argon Usually Used Fill Weather Balloons Hydrochloric Acid Added Small Amount Substance Test Tube Pop Sound Observed Bringing Burning Matchst Match Following Column Column B Acidic Oxide Sodium Water Basic Oxide Iron Water Slow Reaction Sulph Silver Nitrate Added Copper Aluminium Foil Added Hydrochloric Acid Shweta Two Objects X One Metal Whereas Non Metal Beats X Hammer Finds Changes Thin Sheet Beats Hamme Mercury Liquid Metal Liquid Non Metal Non Metal Hammer Powdery Mass Metal Hammer Magnesium Found Plants Sulphur Used Water Purification Process Name Metal Malleable Ductile Fe Cuso4 Feso4 Cu Kind Reaction Given Equation Represent 20 Cylindrical Pillars Building Diameter 50 Cm Height 4 Find Cost Cleaning 14 Per M2 Copper Vessel Exposed Moist Air Acquires Green Coloured Coating Composition Green Coating Corrosion Iron Called Generally Oxides Metals Nature Name Two Metals Hard Strong Curved Surface Area Right Circular Cylinder 4 4 M2 Radius Base 0 7 Find Height Ii Volume Silver Used Making Mirrors Sulphur Heated Presence Air Product Obtained Mixed Water Concluded Acidic Basic Nature Solution Obta Name Compound Produced Magnesium Burnt Air Write Three Differences Metals Non Metals Lateral Surface Area Cylinder 94 2 Cm2 Height 5 Cm Find Radius Base Ii Volume Take 3 14 Write Activity Show Metals Non Metals React Sodium Hydroxide Iron Nails Added Two Beakers X Contain Aqueous Solutions Copper Sulphate Zinc Sulphate Respectively Rajesh Two Different Substances X Test Tube Adds 5 Ml Sulphuric Acid Test Tubes Observes Hydrogen Ga Sketch Graphs Following Functions F X Tan 2x Two Solutions Equation Tan X B Sec X C Find Values Sin Cos Calcium Reacts Hydrochloric Acid Produce Products Obtained Potassium Sulphate Reacts Barium Iodide Aqueous Medium Use Following Information Answer Next Question Metals Arranged Decreasing Order Reactivities Given M Example Double Displacement Reaction Use Following Information Answer Next Question Copper Turnings Added Clear Solution Silver Nitrate G Use Following Information Answer Next Question Raju Made Electric Circuit Test Electrical Conductivi Find Least Number Divided 20 25 35 40 Leaves Remainders 14 19 29 34 Respectively Distinguish Terms Overloading Short Circuiting Used Domestic Circuits B Coils Electric Toasters Mad Define Hormones Name Hormone Secreted Thyroid Write Function Use Iodised Salt Advised Us Three Pieces Timber 42 49 63 Long Divided Planks Length Greatest Possible Length Plank Many Planks F State One Difference Pollination Fertilization B Man Blood Group Marries Woman Blood Group Daughter Carbon Form Compounds Mainly Covalent Bonding B List Two Reasons Carbon Forming Large Number Compou Information Inwhich Alternative Incorrectly Matched Homologous Series Compounds List Two Characteristics Homologous Series B Would Observed Adding 5 Al Meant Saying Potential Difference Two Points 1 Volt Name Device Helps Measure Potential Difference Differentiate Animal Plant Fibres Give Two Examples Expansion Solids Equal Size Temperature Increased Amount Agree Give Reasons Temperature Scale Used Scientific Work State Whether Following Statements True False Justify Answer Point P 4 2 Lies Line Segment Joining P State Whether Following Statements True False Justify Answer Points 0 5 0 9 3 6 Collinear Find Coordinates Point Q X Axis Lies Perpendicular Bisector Line Segment Joining Points 5 2 B 4 2 Na Use Following Information Answer Next Question Soft Metal Cut Knife Metal Liquid Room Temperature In Transpiration Important Plants Use Following Information Answer Next Question Metals Atoms Linked One Another Metallic Bond Whereas Following Metalsis Neither Malleable Ductile Light Metals Compound Reacts Water Form Sulphurous Acid H2so3 Since Sodium Highly Flammable Corrosive Metal Stored Nitrogen Oxides Present Atmosphere React Water Form Acid Acid Along Precipitation Falls Earth Acid R Use Following Information Answer Next Question Sulphur Non Metal Belonging Group Vi Periodic Table S Use Following Information Answer Next Question Metals React Oxygen Form Oxides Superoxides Readily D Use Following Information Answer Next Question Non Metals React Oxygen Form Corresponding Oxides Oxi Megan Wants Replace Handle Frying Pan Using Goes Market Offered Choice Several Materials Following M Element Used Treatment Anaemia Chlorophyll Green Coloured Pigment Present Plants Element Contain Use Following Information Answer Next Question Chemical Identification Experiment Susan Choose Pure Consider Following String Mysubject Mysubject Computer Science Output Following String Operations Pr Consider Following String Myaddress Myaddress Wz 1 New Ganga Nagar New Delhi Output Following String Use Following Information Answer Next Question Nicole Breaks Clinical Thermometer Finds Bulb Thermom Following Metals Neither Malleable Ductile Following Properties Cannot Attributed Metals Use Following Information Answer Next Question Iron Rod Kept Vessel Contains Boiling Water Shown Giv Following Statements Cannot Attributed Non Metals Use Following Information Answer Next Three Questions Mixture Iron Sulfur Formed Thoroughly Grinding Consider Following List Mylist Elements Mylist Following Two Operations Mylist 10 20 30 40 Mylist Ap Use Following Information Answer Next Question Wood Plastic Glass Bad Conductors Electricity Whereas Output Following Code Segment Mylist 1 2 3 4 5 6 7 8 9 10 Del Mylist 3 Print Mylist Mylist 1 2 3 4 5 Differentiate Functions List Append Extend Use Following Information Answer Next Question Way Object Shines Light Falls Known Luster Visual Pro Record Student Name Roll Marks Five Subjects Percentage Marks Stored Following List Strecord Raman 3 Following Materials Conduct Heat Use Following Information Answer Next Question Anthony Heats Four Metallic Containers Filled Water A Following Materials Conduct Heat Following Tables Correctly Lists Various Materials Good Bad Conductors Heat Use Following Information Answer Next Question Rod Heated One End Temperature End Measured Observed Use Following Information Answer Next Question Screw Rubber Tube Wooden Stick Silver Ring Shown Give Following Objects Good Conductor Heat Use Following Information Answer Next Question Given Table Classifies Various Objects Good Bad Condu Use Following Information Answer Next Question Certain Metal Reddish Brown Color Good Conductor Heat Use Following Information Answer Next Question Reactions Two Different Atoms Groups Atoms Interchang Use Following Information Answer Next Question Silver Nitrate Combines Sodium Chloride Form Silver C Use Following Information Answer Next Question Sodium Hydroxide Reacts Carbonic Acid Form Sodium Bic Use Following Information Answer Next Question Single Displacement Reactions Reactions Element Gets Use Following Information Answer Next Question Chemistry Practical Class Students Assigned Task Chec Following Processes Involved Double Displacement Reaction Following Equations Example Single Displacement Reaction Following Displacement Reactions Possible Barium Nitrate Ba No3 2 Mixed Sodium Fluoride Naf Aqueous Solution Following Compounds Obtained Use Following Information Answer Next Question Displacement Reactions Involve Replacement Atom Group Use Following Information Answer Next Question Double Displacement Reaction Two Different Atoms Grou Single Displacement Reaction Among Following Reactions Formed One Molecule Potassium Chloride Reacts One Molecule Silver Nitrate Balanced Equation Reaction Iron Oxide Fe2o3 Sulphuric Acid H2so4 Use Following Information Answer Next Question Displacement Reaction Reactive Element Takes Place Le Aluminium Good Conductor Electricity Use Following Information Answer Next Question Basic Oxides React Water Form Bases Covalent Acidic O Use Following Information Answer Next Question Little Amount Carbon Phosphorus Potassium Sulphur Bur Magnesium Reacts Steam Boiling Water Steam Present Excess Products Obtained Use Following Information Answer Next Question Metals Elements Tendency Lose Electrons Following Ele Following Elements Beaten Hammer Breaks Small Pieces Following Elements Lustrous Shiny Surface Following Elements Sonorous Nature Use Following Information Answer Next Question Fish Shellfish Natural Tendency Accumulate Toxic Elem Following Properties Attributed Metals Use Following Information Answer Next Question Professor Demonstrating Reaction Zinc Dilute Sulfuric Use Following Information Answer Next Question Take Account Given Statements Lab Manual Ii Iii Solut Following Statements Metals False Following Elements Metallic Nature Following Elements Non Metallic Nature Use Following Information Answer Next Question Metals Good Thermal Conductors Metal Heated Atoms Gai Following Metals Poorest Conductor Heat Use Following Information Answer Next Question Jonathan Constructs Setup Shown Figure Time Drawing P Use Following Information Answer Next Two Questions Agatha Teacher Gave Plate Made Unknown Material Cu Al Used Make Electrical Wires Al Used Manufacture Cooking Utensils Boilers Metal Foil Generally Used Purpose Packing Medicine Tablets Aluminium Reacts Copper Sulphate Produce Zinc Reacts Ferrous Sulphate Produce Following Statements Correct Following Statements Correct Alloy One Following Substances Alloy Following Alloys Formed Combination Metal Non Metal Following Alloys Use Copper Constituent Use Following Information Answer Question Alloy Article Steel N Electrum Ii Brass Iii P Bronze Iv Following Alloys Used Make Magnets Following Elements Added Steel Make Corrosion Resistant Stainless Steel Alloy Composition Copper Matte 1 Solutions Copper Sulphate Iron Sulphate Zinc Sulphate Prepared Marked Ii Iii Respectively Pieces Alu Student Prepared Aqueous Solution Cuso4 Beaker X Aqueous Solution Feso4 Beaker Dropped Iron Pieces B Student Prepared Aqueous Solution Cuso4 Beaker X Aqueous Solution Feso4 Beaker Dropped Iron Pieces B Role Graphite Electrometallurgy Aluminium Role Graphite Electrometallurgy Aluminium Role Graphite Electrometallurgy Aluminium Role Zinc Metal Extraction Silver State Chemical Reaction Barium Chloride Aqueous Sodium Sulphate Aqueous Bacl2 Aq Na2so4 Aq Baso4 Whi Gold Precious Metal Pure Gold Soft Therefore Suitable Making Jewellery Alloyed Either Silver Copper Happens Silver Nitrate Solution Added Copper B Aluminium Foil Added Hydrochloric Acid Explain Limita Element Reacts Oxygen Form Oxide Dissolves Dilute Hydrochloric Acid Resulting Solution Turns Colour Following Compositions Correct Composition Thermite Following Mixtures Used Ignition Mixture Thermite Welding Following Compositions Correct Composition Stainless Steel Following Metals Constituent Duralumin Alloy X Obtained Mixing Zinc 40 30 Copper 60 70 Used Making Electric Switches Statues Utensils Ammun Following Alloys Alloy Copper Following Alloys Iron Contain Carbon Three Metal Pieces X Z Taken Cleaned Sand Paper Separately Put Test Tubes Ii Iii Respectively Contai Observed Solution Sodium Sulphate Added Solution Barium Chloride Taken Test Tube Write Equation Chem Four Students P Q R Noted Initial Colour Solutions Kept Beakers Ii Iii Iv Inserting Zinc Rod Solutio Consider Following Table Metal Snso4 Pbso4 Hgso4 Baso4 Sn Displaced Displaced Reaction Pb Reaction D Red Brown Metal X Forms Salt Xso4 Hydrogen Sulphide Gas Passed Aqueous Solution Xso4 Black Precipita Aqueous Solution Compound P Reacts Sodium Bromide Solution Form Yellow Precipitate Compound Q Used P Strip Metal X Dipped Blue Coloured Salt Solution Yz Time Colour Solution Gets Discharged Metal Forme Three Metal Pieces X Z Taken Cleaned Sand Paper Separately Put Test Tubes Ii Iii Respectively Contai List Tabular Three Chemical Properties Basis Differentiate Metal Non Metal B Give Reasons Following Write Chemical Equations Following Reactions Calcium Metal Reacts Water Ii Cinnabar Heated Presence Explain Following Sodium Chloride Ionic Compound Conduct Electricity Solid State However Conduct Ele Q Would Observe Adding Zinc Granules Freshly Prepared Ferrous Sulphate Solution Give Reason Answer Classify Following Reactions Different Types Agno3 Aq Nacl Aq Agcl Nano3 Aq Ii Cao H2o L Ca Oh 2 Aq Following Metals Used Thermometer Metals Produce Ringing Sound Striking Said Metals Show Property Malleability Except Non Metal Could Used Antiseptic Property Match Following Non Metals Uses Non Metal Uses Chlorine Fertilisers Ii Oxygen B Disinfectant Iii Nit Name Metal Widely Used Making Aeroplanes Following Statements Incorrect Match Following Columns Column Column Ii Sulphur Antiseptic B Chlorine Ii Fungicide C Iodine Iii Ins Aqueous Solution Compound Reacts Silver Nitrate Solution Form White Precipitate Compound B Used Anti Name Alloy Contain Aluminium Homogeneous Composition Choose Incorrect Statement Given Reaction Nitric Acid Carbon Carbon Non Metal React Nitric Acid Ii C Piece Metal X Dissolved Colorless Salt Solution Yz Time Color Solution Changes Green Metal Obtained Metal Reacts Nitric Acid Three Different Concentrations X Z Hno3conc X Salt B Gas Ca Hno3conc Salt B Silvery White Metal X Reacts Blue Vitriol Green Vitriol Turns Colorless Metal Oxide Metal X Prevents Use Following Information Answer Next Question Happen Given Granules Test Tube Use Following Information Answer Next Question One Following Required Identify Gas Evolved Reaction Following Chemical Reactions Type Precipitation Reaction Following Reactions Hydrogen Gas Evolved Find Correct Alternative Amongst Following Options Regarding Reaction Metals Water Following Reactions Example Displacement Reaction Omkar Gandhi Resident North India Went Vellore Small Town State Tamil Nadu Southern Part Country Pur Unlike Metal Oxides Metal Oxide Metal X Dissolves Water Form Compound Compound Widely Used Paper Mak Metal X Burns Air Black Coloured Compound Formed Small Amount Compound Taken Beaker Dilute Hydrochlo Assertion Copper Strip Placed Solution Silver Nitrate Colour Solution Changes Blue Colourless Reason Assertion Potato Chips Packaged Nitrogen Gas Reason Nitrogen Gas Present Abundance Nature Compound Obtained Reaction Iron Steam Fe2o3 B Fe3o4 C Feo Fe2o3 Fe3o4 Element X Reacts O2 Give Compound High Melting Point Compound Also Soluble Water Element X Likely Ir Hydrogen Sulphide Gas Passed Blue Solution Copper Sulphate Black Precipitate Copper Sulphide Obtaine Following Question Statement Assertion Followed Statement Reason Choose Correct Answer Following Cho Following Statements True Reaction Sodium Sulphate Solution Barium Chloride Solution Following Lustrous Sulphur Dioxide Reacts Water Form Compound X X Formed Turn Blue Litmus Paper Red X Beaten Thin Sheets Following Use Non Metal Copper Vessel Exposed Moist Air Long Acquires Dull Green Coating Green Material Formed Mixture Following Example Amphoteric Oxide One Following Statements Correct Displacement Reactions Following Materials Beaten Thin Sheets Happens Magnesium Ribbon Burnt Air Happens Iron Nail Dipped Copper Sulphate Solution Following Metals React Cold Water Bronze Alloy