Chemistry MCQs

Page No. 38

In diaphragm cell hydrogen is discharged by the reduction of__________________?


aWater


bHCl


cNa+


dNaCl


View Answer Water

Which one of the following carbonate is water insoluble ?


aNa2CO3


bK2CO3


c(NH4)2CO3


dCaCO3


View Answer CaCO3

Which one of the following substances conducts electricity by the movement of ions ?


aGraphite


bCopper


cMolten sodium chloride


dMercury



The ore CaSO4.H2O has the general name_______________?


aGypsum


bDolomite


cCalcite


dPlaster of Paris


View Answer Gypsum

Which of the following sulphates is not soluble in water ?


aSodium sulphate


bPotassium sulphate


cZinc sulphate


dBarium sulphate


View Answer Barium sulphate

Nitrates of which pair of elements give different products on thermal decomposition ?


aNa K


bMg Ca


cLi Na


dLi Ca


View Answer Li Na

Which element is necessary for normal leaf development ?


aSi


bBa


cMg


dCa


View Answer Ca

The word Alkali means__________________?


aBase


bBasic salt


cAshes


dSpirit


View Answer Ashes

Which one is least ionic in nature and decompose on heating ?


aLiOH


bNaOH


cKOH


dCsOH


View Answer LiOH

Which one is natron ?


aNa2CO3


bNa2CO3.10H2O


cNa2CO3.H2O


dNaHCO3


View Answer Na2CO3.H2O

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