Question

the brown gas evolved on heating of copper nitrate​

Answer 1

Step-by-step explanation:

When copper nitrate is heated in the test tube, it decomposes into copper oxide, nitrogen dioxide and oxygen gas. Initially, a molecule of water is lost and on further heating, we get nitrogen dioxide and oxygen gas.

Answer 2

$\huge\frak\pink{Answer}$

When copper nitrate is heated in the test tube, it decomposes into copper oxide, nitrogen dioxide and oxygen gas. Initially, a molecule of water is lost and on further heating, we get nitrogen dioxide and oxygen gas.