Question

When $NaOH$ reacts with $N{O_2}$ , the products obtained are $NaN{O_2}\,and\,NaN{O_3}$ ,
$2NaOH + 2N{O_2} \to NaN{O_2} + NaN{O_3} + {H_2}O$
From this reaction, which nature of $N{O_2}$ can we conclude?
(A) Acidic
(B) Basic
(C) Amphoteric
(D) Neutral

Answer 1

Hint : In order to this question, to know the nature of $N{O_2}$ in the given reaction, we will first check the kind of products the reaction gave. And then we can conclude the nature of $N{O_2}$ . As we know that when acid reacts with base, it always gives salt and water.

Complete Step By Step Answer:
We can conclude that $N{O_2}$ is acidic in nature as it reacts with a base $(NaOH)$ to form salt and water.
As we can see in this reaction- In the reactant part, we all know $NaOH$ is a base. And in the product part, we can see that there is salts and water.
So, the reaction between base and an acid will always give salt and water.
Therefore, $N{O_2}$ is acidic in nature.
Hence, the correct option is (A).

Note :
The reaction of an acid with a base is called a neutralization reaction. The products of this reaction are a salt and water. In this traditional representation an acid–base neutralization reaction is formulated as a double-replacement reaction.