Question

State the valency of the elements in the respective compounds in the table below.

1. Sulphur in
i) sulphur dioxide
ii) sulphur trioxide

2. Nitrogen in
i) nitrogen monoxide
i) nitrogen dioxide
iii) dinitrogen oxide
iv) dinitrogen pentoxide

3. Copper in
i) copper [II] oxide
ii) copper [I] oxide​

Answer 1

Answer:

1. Sulphur in

i) sulphur dioxide = +4

ii) sulphur trioxide = +6

2. Nitrogen in

i) nitrogen monoxide = +2

i) nitrogen dioxide = +4

iii) dinitrogen oxide = +1

iv) dinitrogen pentoxide = +5

3. Copper in

i) copper [II] oxide = +2

ii) copper [I] oxide= +1 and +2

Answer 2

• For answer please refer to the given image