Question

20. Point out the mistakes in the following and correct them:

(viii) $\mathrm{AgS}$

Answer 1

1. The valency of Silver is- $1^{+}$
2. The valency of Sulphur is- $-2$
3. One Silver atom can lose one electron. One Sulphur atom can gain two electrons.
4. So, two Silver atoms react with one Sulphur atom to produce Silver Sulphide.
5. The chemical formula of Silver Sulphide will be- ${\mathrm{Ag}}_2\mathrm{S}$