The function of the system of granulated carbon mixed with manganese (IV) oxide in a Letanche cell is to

Assessment: JAMB UTME - Physics - 1991 Subject: Physics

Question 1 Report

The function of the system of granulated carbon mixed with manganese (IV) oxide in a Letanche cell is to
Answer Details
The Letanche cell uses a system of granulated carbon mixed with manganese (IV) oxide to prevent polarization in the cell. Polarization happens when the electrodes in a cell become coated with gas bubbles or other substances, hindering the flow of electricity. The mixture of carbon and manganese (IV) oxide acts as a catalyst to speed up the reaction and prevent polarization, ensuring a steady flow of electricity. This allows the cell to maintain a constant voltage and function efficiently. Therefore, option C, "prevent polarisation in the cell," is the correct answer.

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