Genius Jnr - A solid of density 900 kg/m3 floats in oil as shown in the given diagram. The oil floats on water of density 1000 kg/m3 as shown. The density of oil kg/m3 could be : Figure (a) 850 (b) 900 (c) 950 (d) 1050

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A solid of density 900 kg/m³ floats in oil as shown in the given diagram. The oil floats on water of density 1000 kg/m³ as shown. The density of oil kg/m³ could be :

Figure

(a) 850
(b) 900
(c) 950
(d) 1050

or

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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 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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 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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 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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