Polarisation may be called as the distortion of the shape of an anion by an adjacently placed cation. Which of the following statements is/are not correct?

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A large cation is likely to bring about a large degree of polarisation

A small anion is likely to undergo a large degree of polarisation

Maximum polarization is brought about by a cation of high charge

Minimum polarization is brought about by a cation of low radius

answer is A, B, D.

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Detailed Solution

Polarisation may be called as the distortion of the shape of an anion by an adjacently placed cation is maximum polarization is brought about by a cation of high charge

Larger polarising power will result from smaller size and higher charge on the cation, which can polarise the electron charge density of the surrounding anion to a greater extent.
Polarizability will be greater for anions that are bigger in size and charged more intensely.
So, choice C is the right one.

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