Question

Which of the following has the least tendency to dimerise?
(A) NO2 (B) ClO3 (C) ClO2 (D) Mn(CO)5

Answer 1

Answer:

CIO2

Explanation:

The molecule ClO2 has odd number of valence electrons. Hence it is paramagnetic nature.

Now this odd electrons molecule has to dimerizes in order to pair the electron, but ClO2 does not . The actual reason is the odd electron is delocalized because it is involved in p(pi)-d(pi) bonding. Therefore, it is not available for demerization.

Answer 2

Answer:

clo2

Explanation:

clo2 has odd number of valence electrons.it is paramagnetic in nature