JAMB Chemistry 2016 Objective — Question 3

Question 3 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2016 Objective paper, with the correct answer and a full explanation.

3. In an electrochemical cell, polarization is caused by A. oxygen B. hydrogenC. tetraoxosulphate VI acid D. chlorine

A. oxygen
B. hydrogenCorrect
C. tetraoxosulphate VI acid
D. chlorine

Explanation

Polarization results from the accumulation of hydrogen. This can be rectified using a depolarizer such as manganese (IV) oxide, MnO2.

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