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

Question

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 (A) NO ; NO2; HNO3 (B) NO2 ; NO ; HNO3 (C) N2O ; NO ; HNO2 (D) NO ; N2O ; HNO3

Tardigrade Admin · Accepted Answer

3Cu + 8HNO3(dil) → 3Cu(NO3)2 + underset text(X)2NO + 4H2O 2NO +O2 leftharpoons underset text(Y)2NO2 underset text(Y)3NO2+ H2O underset text(Z)2HNO3+ underset text(X)NO

Q. A gas $(X)$ is obtained when copper reacts with dilute $H N O_{3}$ . 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

$NO; N O_{2}; H N O_{3}$

$N O_{2}; NO; H N O_{3}$

$N_{2} O; NO; H N O_{2}$

$NO; N_{2} O; H N O_{3}$

$3 C u + 8 H N O_{3 (d i l)} \to 3 C u (N O_{3})_{2} + (X) 2 NO + 4 H_{2} O$
$2 NO + O_{2} ⇌ (Y) 2 N O_{2}$
$(Y) 3 N O_{2} + H_{2} O (Z) 2 H N O_{3} + (X) NO$

Q. 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

NO;NO2​;HNO3​

NO2​;NO;HNO3​

N2​O;NO;HNO2​

NO;N2​O;HNO3​