NCERT/Class 10/Science/Metals and Non-metals

Metals and Non-metals

Class 10 · Science

150 questions50 easy50 medium50 hard

Sample Questions

Q1.What is electrolytic refining used for?

  • APurifying impure metals
  • BExtracting metals from ores
  • CCoating metals with zinc
  • DConverting ores to oxides

Q2.What would you observe when zinc is added to a solution of iron(II) sulphate? Write the balanced equation.

  • AZinc displaces iron; the green colour of FeSO4 fades; Zn + FeSO4 → ZnSO4 + Fe
  • BIron displaces zinc; blue colour develops
  • CNo reaction; zinc is less reactive than iron
  • DBoth zinc and iron dissolve

Q3.What is the difference between roasting and calcination?

  • ARoasting is heating in excess air; calcination is heating in limited air
  • BRoasting is heating in limited air; calcination is heating in excess air
  • CBoth involve heating in excess air
  • DBoth involve heating without air

Q4.Why is aluminium used for making cooking utensils despite being a reactive metal?

  • AIt forms a protective oxide layer that prevents further corrosion
  • BIt is not actually reactive
  • CIt reacts with food to make it nutritious
  • DIt does not react with oxygen

Q5.What is the green coating on copper vessels?

  • ABasic copper carbonate
  • BCopper oxide
  • CCopper sulphide
  • DCopper chloride

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

Acid-Base ReactionsActivity SeriesAlkali MetalsAllotropes of CarbonAlloysAluminium ExtractionAmalgamAmphoteric OxidesAnode MudAnodisingApplicationApplicationsAqua RegiaAtoms and MoleculesBalancing EquationsBrassBronzeCalcinationCarbon ReductionCatalystChemical BondingChemical EquationChemical Properties of MetalsChemical Properties of Non-metalsChemical ReactionChemical ReactionsCombination ReactionCombustionCombustion ReactionCombustion of MetalsCorrosionCorrosion PreventionCrystal StructureDecomposition ReactionDiamondDisplacement ReactionDuctilityElectrical ConductivityElectrolytic ExtractionElectrolytic ReductionElectrolytic RefiningElectronic ConfigurationEndothermic ReactionEnergyEnvironmental ImpactExothermic ReactionExperimental ObservationsExperimentsExtraction of AluminiumExtraction of MetalsGalvanisationGoldGraphiteHistorical ContextIdentificationIonic BondingIonic CompoundsLaw of Conservation of MassLeast Reactive MetalsLogical ReasoningLustreMalleabilityMelting PointsMetal OxidesMetallurgyMineralsMinerals and OresNon-metal OxidesNotationObservation SkillsOccurrence of MetalsOres and MineralsOxidationOxidation StatesOxidation-ReductionOxidising AgentsPhysical NaturePhysical PropertiesPhysical Properties of MetalsPhysical Properties of Non-metalsProductsProperties of AlloysProperties of Ionic CompoundsReactantsReaction RateReaction with AcidsReaction with OxygenReaction with WaterReactionsReactivityReactivity SeriesRedox ReactionReductionRoastingRoasting and CalcinationRusting ConditionsRusting of IronSacrificial ProtectionSolderSolubilitySonorityStainless SteelStates of MatterSteelSurface AreaSynthesisTarnishingThermal ConductivityThermit ReactionValence Electrons

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