The function of the system of granulated carbon mixed with manganese (IV) oxide in a Letanche cell is to
A
increase the e.m.f. of the cell to 2.0V
B
prevent local action in the cell
C
prevent polarisation in the cell
D
make the cell black and hence a good radiator
Verified Correct Answer: C.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #28197)