Question

What is the valency of N in following compounds.
(1) N₂O₃
(2) NO₂
(3) N₂O₅

Answer 1

Answer:

the answer is b I think so

Answer 2

Valency of N is +3, +4, +5 respectively.

Explanation:

Valency of oxygen is always -2. So the valency of N in the given compounds will be calculated depending on the number of oxygen atoms attached per nitrogen atom.

1) In N₂O₃, valency of Nitrogen is +3.

Two nitrogen atoms are attached to 3 oxygen atoms. Oxygen valency will be 3*-2 = -6. So valency of one nitrogen atom = +6/2 = +3.

2) In NO₂, valency of Nitrogen is +4.

One nitrogen atom is attached to 2 oxygen atoms. Oxygen valency will be 2*-2 = -4. So valency of one nitrogen atom = +4/1 = +4.

3) In N₂O₅, valency of Nitrogen is +5.

Two nitrogen atoms are attached to 5 oxygen atoms. Oxygen valency will be 5*-2 = -10. So valency of one nitrogen atom = +10/2 = +5.