The electrolyte used in the Nickel-Iron (NiFe) accumulator is
A.
dilute tetraoxosulphate(VI) acid
B.
barium chloride solution
C.
potassium hydroxide solution
D.
sodium hydroxide solution
Correct answer is C
The electrolyte used in the Nickel-Iron (NiFe) accumulator is potassium hydroxide solution. It is a non-flammable, non-toxic, and relatively stable electrolyte. It is also a good conductor of electricity, which is important for the operation of the battery.
