Question

Polarization is the distortion of the shape of an anion by an adjacently placed cation. Which of the following statements is correct?

• A. Maximum polarization is brought about by a cation of high charge
• B. Minimum polarization is brought about by a cation of low radius
• C. A large cation is likely to bring about a large degree of polarization
• D. A small anion is likely to undergo a large degree of polarization

Answer 1

Answer: (A)

According to Fajans’ rule, polarisation of anion is influenced by charge and size of cation. More is the charge on cation, more is polarisation of anion.