Question

(c) The valency of nitrogen in nitrogen dioxide
NO2 is:
(1) one
(ii) two
(iii) three
(iv) four.
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Answer 1

Writing the balance equation to bring the net oxidation state of nitrogen dioxide as zero, we get, x+2×(−2)=0⇒x=4. Thus the oxidation state of nitrogen is +4 and valency of nitrogen is 4.

Answer 2

Answer:

1.one is the correct answer Ok.