Pentavalence in phosphorous is more stable compared to that of nitrogen even though they belong to same group this is due to :

Reactivity of phosphorous

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Larger size of phosphorous

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Inert nature of nitrogen

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Dissimilar electronic configuration

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Solution

The correct option is B Larger size of phosphorous
Pentavalency in phosphorus is more stable that of nitrogen due to the large size of the phosphorus atom.

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Similar questions

Though nitrogen and phosphorous exhibits +5 oxidation state, nitrogen does not form pentahalide but phosphorous forms. Give reason.

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