Statement (A): Valency of s-block elements is equal to number of electrons present in ultimate shell.
Statement (B): Ru and Os show oxidation state
Statement (C): General electronic configuration of d block elements is

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A, B are incorrect and C is correct

All the above statements are correct

A, B are correct and C is incorrect

All the above statements are incorrect

answer is A.

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Valency of s-block elements is equal to number of electrons present in ultimate shell.

Ru and Os show oxidation state Question Image

General electronic configuration of d block elements is Question Image

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