As we know oxidation number of hydrides are generally (-1) so but why it is counted (+1) in amonia ?

1 Answer
Nam D.
Jun 12, 2018

Electronegativity values....

Explanation:

Nitrogen in ammonia has higher electronegativity than hydrogen, and so hydrogen will possess its more common #+1# oxidation state. #-1# oxidation state in hydrogen is only found when its bonded with less electronegative elements than itself, such as sodium, making the compound sodium hydride #(NaH)#.

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