Statement-I : In the case of Nitrogen all the oxidation states from + 1 to + 4 tends to undergo disproportionation in acidic solution
Statement-II : In the case of phosphorous nearly all the oxidation states readily undergoes disproportionation in acidic and alkali medium

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Statement-I incorrect and statement-II correct

Statement I and II are correct

Both statements are incorrect

Statement-I correct and statement-II incorrect

answer is B.

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Detailed Solution

Statement I is true

Nitrogen compounds in + 1 to + 4 oxidation states, nitrogen contains lone pair electrons and under goes disproportionation in presence of acidic medium. These oxidation states are intermediate oxidation states.

Statement II is false

P shows oxidation states from - 3 to +5. Only those oxidation states in between - 3 to +5 under goes disproportionation in both acidic and basic medium but not all oxidation states .

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