One of the following salts will give an alkaline solution on dissolving in water. This is :
(a) Na2CO3
(b) Na2SO4
(c) NaCl
(d) (NH4)2SO4
Na2CO3 a will give basic solutions becaus they created from strong base and weak acid.
The salt which will give an acidic solution on dissolving in water is :
(a) KCl
(b) NH4Cl
(c) Na2CO3
(d) CH3COONa