When NaOH reacts with NO₂, the products obtained are NaNO₂ and NaNO₃.

From this reaction, which nature of NO₂ can we conclude?

• (A) Acidic
• (B) Basic
• (C) Amphoteric
• (D) Neutral

When sodium hydroxide (NaOH) reacts with nitrogen dioxide (NO₂), it produces sodium nitrite (NaNO₂) and sodium nitrate (NaNO₃). This reaction indicates that NO₂ behaves as an acid in this context.

Understanding the Nature of NO₂

To determine the nature of NO₂, consider the following:

• Acidic Behavior: NO₂ can donate protons (H⁺ ions) in reactions, which is a characteristic of acids.
• Basic Behavior: NO₂ does not accept protons, so it does not exhibit basic properties.
• Amphoteric Nature: While some substances can act as both acids and bases, NO₂ primarily shows acidic characteristics in this reaction.
• Neutral Behavior: NO₂ is not neutral, as it actively participates in acid-base reactions.

Based on this analysis, the correct conclusion is that NO₂ is acidic.