Question

1992
1. What is the valency of nitrogen in: NO, NO, NO,
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Answer 1

Explanation:

Valency of Oxygen is always -2.

So in these compounds valency of Nitrogen can be calculated by following ways.

1.

In N2O:

Let X is the valency of Nitrogen N So

2*X+(-2)=0

2X=2

X=1

In N2O valency of Nitrogen is +1.

2.

In NO2:

As oxygen valency is always -2.

Let X is the valency of Nitrogen N So

X+2*(-2)=0

X-4=0

X=4

In NO2 valency of Nitrogen is +4.

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