Assertion On cooling, the brown colour of nitrogen dioxide disappears. Reason On cooling, NO2 undergoes dimerisation resulting in the pairing of odd electrons of NO2.

Question

Assertion On cooling, the brown colour of nitrogen dioxide disappears. Reason On cooling, NO2 undergoes dimerisation resulting in the pairing of odd electrons of NO2. (A) Both Assertion and Reason are true and Reason is the correct explanation of Assertion. (B) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. (C) Assertion is true but Reason is false. (D) Both Assertion and Reason are false.

Tardigrade Admin · Accepted Answer

Reason is the correct explanation of Assertion

Q. Assertion On cooling, the brown colour of nitrogen dioxide disappears. Reason On cooling, NO2​ undergoes dimerisation resulting in the pairing of odd electrons of NO2​.

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

Assertion is true but Reason is false.

Both Assertion and Reason are false.

Reason is the correct explanation of Assertion

Q. Assertion On cooling, the brown colour of nitrogen dioxide disappears.
Reason On cooling, $N O_{2}$ undergoes dimerisation resulting in the pairing of odd electrons of $N O_{2}$ .