Discussion Forum

In the dry cell, what acts as a negative electrode?

Answer:

Explanation:

 In a dry cell, zinc acts as a negative electrode.

In this cell , the outer zinc container is the negatively charged terminal

At anode  (negative terminal)

$Zn(s)\rightarrow Zn^{2+}(aq)+2e^{-}$

At cathode (positive terminal)

$2MnO_{2}(s)+2e^{-}+2NH_{4}Cl(aq)\rightarrow Mn_{2}O_{3}(s)+2NH_{3}(aq)+H_{2}O(l)+2Cl^{-}$