Who donates electrons to dry cells?
A.
Zinc drumB.
Carbon barC.
Manganese dioxideD.
Coal powderAnswer & Solution
Answer:
Carbon bar
Solution:
A dry cell is a
type of electric battery, commonly used for portable electrical devices. A
standard dry cell comprises a zinc anode, usually in the form of a cylindrical
pot where an oxidation reaction occurs (loss of electrons for the electroactive
species), with a carbon cathode in the form of a central rod where a reduction
reaction occurs (gain of electrons for the electroactive species).
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