Question

What are X and Y respectively in the following reactions? \[ {Cu} + {HNO}_3 \, ({dilute}) \rightarrow {Cu(NO}_3)_2 + {H}_2{O} + X \] \[ {Zn} + {HNO}_3 \, ({dilute}) \rightarrow {Zn(NO}_3)_2 + {H}_2{O} + Y \]

• A. \( {NO}, \, {N}_2{O} \)
• B. \( {NO}, \, {NO}_2 \)
• C. \( {NO}_2, \, {N}_2{O} \)
• D. \( {N}_2{O}, \, {NO}_2 \)

Hint:

In reactions involving metals and dilute acids, the product gas often depends on the oxidation state of the metal and the nature of the acid. In this case, \( {NO} \) and \( {N}_2{O} \) are typical products when metals like Cu and Zn react with dilute nitric acid.

Answer 1

The Correct Option is A

In the given reactions, \( {Cu} \) and \( {Zn} \) react with dilute \( {HNO}_3 \) to form nitric oxide (\( {NO} \)) and nitrous oxide (\( {N}_2{O} \)).
Hence, the correct answer is \( {NO}, \, {N}_2{O} \).