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Q.

Oxidation state of N in is NH3

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a

+1/3 

b

–1

c

+3 

d

–3 

answer is C.

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Detailed Solution

Let x be the oxidation state of nitrogen in ammonia. The oxidation state of hydrogen is +1 .

x+3(+1)=0 

x+3=0

x=-3

Hence the correct answer is (C) –3.

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