Question

Statement 1 : $NO_2$ is readily dimerised to $N_2O_4$.
Statement 2 : $NO_2$ has one unpaired electron and two such electrons with opposite spin in two $NO_2$ molecules form bond between two $N$-atoms readily.

• A. If both Statement $1$ and Statement $2$ are true and the statement $2$ is the correct explanation of the statement $1$
• B. If both Statement $1$ and Statement $2$ are true but statement $2$ is not the correct explanation of the statement $1$
• C. If Statement $1$ is true but Statement $2$ is false
• D. If Statement $1$ is false but Statement $2$ is true

Answer 1

Answer: (A)

Since the process does not require any rearrangement and thus energy of activation for dimerisation of $NO_2^-$ is low.