According to Fajjan'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 large anion

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Small cation and small anion

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Solution

The correct option is D Small cation and large anion
Fajjan's rule states that covalency is favored by Small cation and large anion, as anion will be less polarized.

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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

A B_{2}

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