ICSE Class 10 Metallurgy — practice questions
20 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice ICSE Class 10 Metallurgy in the app →Most metals form which type of oxide?Most non-metals form which type of oxide?The most abundant metal in the earth's crust isA naturally occurring substance from which a metal can be extracted economically is calledCrushing and grinding of ore followed by separation of useful mineral from earthy impurities is calledFroth flotation method is used to concentrate ores that areBauxite (Al2O3.2H2O) is purified byCalcination is the heating of an oreRoasting differs from calcination because roasting is doneReduction of metal oxides by carbon is suitable forAluminium is extracted byCryolite is added to alumina in the Hall-Heroult cell toElectrolysis of fused sodium chloride produces sodium at theRusting of iron is the formation ofRusting of iron is prevented in galvanisation by coating iron with a layer ofSteel is an alloy of iron andDuralumin is an alloy ofBrass is an alloy ofCommon ore of zinc isCommon ore of aluminium is