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Question

N2H4 reduces IO3 to I+ in acidic medium as

N2H4+IO3+H+N2+I++H2O

N2H4 is oxidised to N2. Both N atom in N2 are from N2H4. It can be verified by :

A
taking 15N enriched N2H4,
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B
taking 2D enriched N2H4,
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C
taking both (A) and (B)
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D
taking none of the above
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Solution

The correct option is A taking 15N enriched N2H4,
N2H4+IO3+H+N2+I++H2O
If both N are coming from hydrazine then if we use N15 instead ofN14, then molar mass of N2 found to be 30.

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