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NEET levelSingle correct optionDifficulty 1 of 3bn119

What is the oxidation number of N in the ammonium ion $NH X_{4} X^{+}$ (H is $+ 1$ )?

A $+ 3$
B $- 3$
C $- 4$
D $+ 5$

Answer: B

The oxidation numbers must add up to the ion charge.

x + 4 (+ 1) = + 1

, so

x = - 3

.

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