In an attempt to demonstrate electric conductivity through an electrolyte, the following apparatus (figure) was set up.

Which among the following statement(s) is/are correct?

(i) Bulb will not glow because electrolyte is not acidic.

(ii) Bulb will glow because NaOH is a strong base and furnishes ions for conduction.

(iii) Bulb will not glow because circuit is incomplete.

(iv) Bulb will not glow because it depends upon the type of electrolytic solution.

Question

In an attempt to demonstrate electric conductivity through an electrolyte, the following apparatus (figure) was set up.

Which among the following statement(s) is/are correct?

(i) Bulb will not glow because electrolyte is not acidic.

(ii) Bulb will glow because NaOH is a strong base and furnishes ions for conduction.

(iii) Bulb will not glow because circuit is incomplete.

(iv) Bulb will not glow because it depends upon the type of electrolytic solution.

Philoid · Accepted Answer

Bulb will glow as NaOH is a strong base that dissociates completely in water to furnish OH^- and Na⁺ ions. It is thus a strong electrolyte and conducts electricity through it. Strong acids and bases are good conductors of electricity.

NaOH→Na++OH−