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NO₂ dissolves in NaOH solution to form sodium salts (x) and (y). Oxidation state of nitrogen in (x) and (y) is respectively P and Q (Q > P). Find difference between Q and P

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answer is B.

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Detailed Solution

2NaOH + 2NO₂ $\to$ NaNO₂(x) + NaNO₃ (y)

P = 3; Q = 5

Q - P = 5 - 3 = 2

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