Choose A, B, C or D to match the descriptions (i) to (v) below. Some alphabets may be repeated.

A. non-electrolyte

B. strong electrolyte

C. weak electrolyte

D. metallic conductor

(i) Molten ionic compound

(ii) Carbon tetrachloride

(iii) An aluminium wire

(iv) A solution containing solvent molecules, solute molecules and ions formed by the dissociation of solute molecules.

(v) A sugar solution with sugar molecules and water molecules.

An electrolyte which completely dissociates into ions is:

a. Alcohol

b. Carbonic acid

c. Sucrose

d. Sodium hydroxide

Select the ion in each case that would get selectively discharged from the aqueous mixture of the ions listed below:

(a) SO₄^2-, NO₃^-, and OH^-

(b) Pb²⁺, Ag⁺, and Cu²⁺

(a) Among Zn and Cu, which would occur more readily in nature as metal and which as ion?

(b) Why cannot we store AgNO₃ solution in copper vessels?

(c) Out of Cu and Ag, which is more active?