Statement (A): Sulphur is a divalent element.
Statement (B): Chlorine is a monovalent element.
Statement (C): Aluminium is a trivalent element.

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All the above statements are incorrect

A, B are correct and C is incorrect

All the above statements are correct

A, B are incorrect and C is correct

answer is A.

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Detailed Solution

Sulphur belongs to VIA group, its valency is 8-6=2, it is divalent.

Chlorine belongs to VIIA group, its valency is 8-7=1, it is monovalent.

Aluminium belongs to IIIA group, its valency is equal to its group number, because it is metal it is trivalent.

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