Chemistry MCQs

Page No. 32

The process of aluminium extraction is called__________________?


aHall process


bThermite process


cHaber process


dContact process


View Answer Hall process

Which one of the following is not a semiconductor ?


aSi


bGe


cSe


dSn


View Answer Sn

Tincal is a mineral of___________________?


aAl


bSi


cB


dC


View Answer B

Which of the following shows inert pair effect ?


aboron


bcarbon


csilicon


dtin


View Answer tin

The metal which is used in thermite process because of its activity is____________________?


airon


bcopper


caluminium


dzinc


View Answer aluminium

Which of the following does not give Borax bead test ?


aCu


bCr


cNi


dAl


View Answer Al

Substance which is found in dried up lakes of Tibet and California is_______________?


aTincal


bBoric acid


cCalcium carbonate


dColemanite


View Answer Tincal

Boron in soil has been considered micronutrient for_________________?


aSoil porocity


bProper growth of plants


cAlkalinity of soil


dAll



Which of the following is metasilicic acid ?


aH2SnO3


bH2SiO3


cH3AsO4


dH3SbO4


View Answer H2SiO3

Which of the following will decompose to produce litharge_________________?


aPb2O


bPb3O4


cPbO2


dAll of the above


View Answer Pb3O4

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