Statement 1: ZnO becomes yellow when it is heated.
Statement 2: NaCl becomes yellow when heated in the presence of Na vapours due to anion vacancy.

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Both Statement 1 and Statement 2 are true

Both Statement 1 and Statement 2 are false

Statement 1 is true but Statement 2 is false.

Statement 1 is false but Statement 2 is true.

answer is A.

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Detailed Solution

Zinc oxide losses oxygen reversible at high temperature and turns yellow.

NaCl becomes yellow when heated in the presence of Na vapours due to anion vacancy,that is due to F-centre.

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