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Chemistry-(general)

NEET Chemistry (general) Assertion Reason Question

Type: Assertion Reason-assertion-Hard-Class 12

Assertion (A): When a nitrite ion undergoes reaction with dilute H₂SO₄, nitrogen dioxide gas is evolved.

Reason (R): Nitrogen dioxide is formed as a result of the oxidation of nitric oxide by atmospheric oxygen.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false.

Correct Answer

Option A

Detailed Explanation

The NCERT context states that NO₂ gas is produced when a nitrite reacts with dilute H₂SO₄, and NO is oxidized to NO₂ by O₂, confirming that R correctly explains A.

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