According to Fajan's rule, covalent bond is favoured by:

large cation and small anion

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large cation and large anion

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small cation and small anion

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small cation and large anion

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Solution

The correct option is D small cation and small anion
According to Fajan's rule, covalent bond is favoured by small cation and large anion. Also large charge on cation and cation with psuedo noble gas configuration will favour covalent bond.

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Similar questions

Why the small size of the cation leads to greater polarising power and why large charge on the cation leads to greater polarising power

Polarisation may be called the distortion of the shape of an anion by an adjacently placed cation.which of the following statements is correct

A minimum polarization is brought about by a cation of low radius

B a large cation is likely to bring about the largedegree of polarization

C maximum polarisation is brought about a cation of highcharge

D a small anion is likely to undergo a large degree of polarization

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