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Sulphur

In any short ...

Question

In any short period the valency of an element with respect to oxygen

A

Increases one by one from

I A

to

V I I A

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B

Decreases one by one from

I A

to

V I I A

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C

Increases one by one from

I A

to

I V A

and then decreases from

V A

to

V I I A

one by one

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D

Decreases one by one from

I A

to

I V A

and then Increases from

V A

to

V I I A

one by one

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Solution

The correct option is A Increases one by one from $I A$ to $V I I A$
Correct option is A. Since oxygen is more electronegative element so it will form oxide with elements of group $I A$ to $V I I A$ in their maximum oxidation state. Maximum oxidation state is equal to number of valence electron in outermost shell . Hence it increases by one in any period.

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