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NEET levelSingle correct optionDifficulty 1 of 3rx002

What is the oxidation number of nitrogen in the ammonium ion, $NH X_{4} X^{+}$ ?

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

Answer: A

For the ion,

x + 4 (+ 1) = + 1

, so

x = - 3

. Hydrogen is

+ 1

because N is more electronegative.

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