Physics
WAEC 1988
Local action is normally prevented from taking place in a simple electric cell by
-
A.
introducing an oxidising agent into the acid
-
B.
not drawing current continuously for long periods
-
C.
amalgamating the surface of the zinc plate
-
D.
using a porous pot to isolate the zinc plate from the acid
-
E.
using dilute sulphuric acid
Correct Answer: Option C
Explanation
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