The p-Block Elements

The p-Block Elements

Question

Pb(NO3)2 on heating gives a brown gas which undergoes dimerization on cooling ? Identify the gas.

Answer
2 Pb left parenthesis NO subscript 3 right parenthesis subscript 2 space left parenthesis straight s right parenthesis space rightwards arrow with increment on top space 2 PbO space left parenthesis straight s right parenthesis space plus 4 NO subscript 2 left parenthesis straight g right parenthesis space
Nitrogen dioxide gas evolved.

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