Question

Difference between sulphate, sulphite, and sulphide.

Answer 1

Sulphate	Sulphite	Sulphide
1. The chemical or molecular formula for sulphate is ${{\mathrm{SO}}_4}^{2-}$.	1. The molecular or chemical formula of sulphite is${{\mathrm{SO}}_3}^{2-}$.	1. The chemical or molecular formula of ${\mathrm{S}}^{2-}$.
2. Sulphur is a central atom and for bonding two of oxygen need two electrons to attach with other atom and form sulphate ion with $-2$ charge.	2. Sulphur is a central atom and for bonding two of oxygen need two electrons to attach with other atom and form sulphite ion with $-2$ charge.	2. Sulfide have sulphur which connects with a covalent bond with a gain of two electrons and sulphide ions are formed.
3. Oxidation state of sulphur is $+6$.	3. Oxidation state of sulphur is $+4$.	3. Oxidation state of sulphur is $-2$.
4. For example, copper sulphate( ${\mathrm{CuSO}}_4$) will contain sulphate ions.	4. For example, copper sulphite( ${\mathrm{Cu}}_2{\mathrm{SO}}_3$) will contain sulphite ions.	4. For example, copper sulphide( ${\mathrm{CuS}}_2$) will contain sulphide ions.