Why is anode in a galvanic cell considered to be negative? - Vidyadip

Question

Why is anode in a galvanic cell considered to be negative?

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Answer

According to IUPAC conventions, the electrode of a galvanic cell where de-electronation or oxidation takes place releasing electrons is called anode. $Zn _{( s )} \rightarrow Zn _{( aq )}^{2+}+2 e ^{-}$
The electrons released due to oxidation reaction are accumulated on the metal electrode surface charging it negatively.

Hence anode in the galvanic cell is considered to be negative.

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