Question

Which of the following substance is an electrolyte.
(a) Copper
(b) Copper Sulphate
(c) Mercury
(d) Kerosene​

Answer 1

Answer:

The answer is (b) Copper sulphate

Answer 2

Answer:

The correct option is (b) Copper Sulphate.

Explanation:

An electrolyte is an ionic substance that when dissolved in water, breaks into anions and cations. These ions can produce electricity.

When $CuSO_{4}$ (copper sulphate) is dissolved in water, it produces $Cu^{2+}$ and $SO_{4}^{2-}$. Where $Cu^{2+}$ is a cation and $SO_{4}^{2-}$ is an anion. Both of these ions are free to move in the solvent and can produce electricity. This makes copper sulphate is an electrolyte.

$CuSO_{4}$ → $Cu^{2+}+SO_{4} ^{2-}$