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The basic character of hydrides of the V group elements decreases in the order

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The basic character of hydrides of the V group elements decreases in the order

(a) NH3 > PH3 > AsH3 > SbH3

(b) SbH3 > AsH3 > PH3 > NH3

(c) SbH3 > PH3 > AsH3 > NH3

(d) NH3 > SbH3 > PH3 > AsH3

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1 Answer

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Best answer

Correct option (a) NH3 > PH3 > AsH3 > SbH3

Explanation :

All the hydrides of group V elements have one lone pair of electrons on their central atom. Therefore, they can act as Lewis bases. The basic character of these hydrides decreases down the group.

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