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NEET levelSingle correct optionDifficulty 1 of 3rx006

In sodium hydride, $NaH$ , the oxidation number of hydrogen is

A $+ 1$
B $0$
C $- 1$
D $+ 2$

Answer: C

Na is an alkali metal (

+ 1

), so

+ 1 + x = 0

gives

x = - 1

. Hydrogen is

- 1

in metal hydrides.

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