Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Electro Chemistry

Question:

Which of the following is true about Leclanche cell?

Options:

Zinc container acts as anode and Carbon (graphite) rod acts as cathode.

Zinc container acts as cathode and Carbon (graphite) rod acts as anode.

Amalgam as anode and a paste of HgO and carbon as the cathode.

Amalgam as cathode and a paste of HgO and carbon as the anode.

Correct Answer:

Zinc container acts as anode and Carbon (graphite) rod acts as cathode.

Explanation:

The Leclanche cell consists of a zinc container that also acts as anode and the cathode is a carbon (graphite) rod surrounded by powdered manganese dioxide and carbon . The space between the electrodes is filled by a moist paste of ammonium chloride (NH4Cl) and zinc chloride (ZnCl2).