(i). `ZnO` is usedj as a white paint inspite of the fact that it has l – InterviewSolution

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1.	(i). `ZnO` is usedj as a white paint inspite of the fact that it has less convering power than white lead. (ii). Hydrated `ZnCl_2` cannot be dehydrated on heating? (iii). Zn is used in galvanisation of Fe.
Answer» (i). `ZnO` is not blackened in atmosphere of `H_2S`. It can be used both as oil and water point. It is non-poisonous in nature. (ii). On heating it reacts with water of crystallisation and forms zinc oxycloride. `2ZnCl_2.2H_2Ooverset(Delta)toZn_2OCl_2+2HCl+3H_2O` (iii). Zinc coating protects the iron from corrosion as Zn is not affected by `O_2` and `H_2O`.

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