1. Tardigrade
  2. Question
  3. Chemistry
  4. A gas (X) is obtained when copper reacts with dilute HNO3. The gas thus formed reacts with oxygen to give brown fumes of (Y). (Y) when dissolved in water gives an important acid (Z) and the gas (X). X , Y and Z respectively are

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Q. A gas $(X)$ is obtained when copper reacts with dilute $HNO_3$. The gas thus formed reacts with oxygen to give brown fumes of $(Y)$. $(Y)$ when dissolved in water gives an important acid $(Z)$ and the gas $(X)$. $X$ , $Y$ and $Z$ respectively are

The p-Block Elements - Part2

Solution:

$3Cu + 8HNO_{3(dil)} \to 3Cu(NO_3)_2 +\,\underset{\text{(X)}}{2NO}\,+ 4H_2O$
$2NO +O_2 \rightleftharpoons \underset{\text{(Y)}}{2NO_2}$
$\underset{\text{(Y)}}{3NO_2}+ H_2O \underset{\text{(Z)}}{2HNO_3}+\underset{\text{(X)}}{NO}$