For the galvanic cell written as Zn | Zn^2+ (1 M) || Cu^2+ (1 M) | Cu, which statement is correct?

The double vertical line represents the salt bridge

The electrode written on the left is the cathode

The double vertical line represents the salt bridge

Electrons flow from Cu to Zn through the external wire

The Cu electrode is the negative terminal

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For the galvanic cell written as $Zn ∣ Zn X^{2 +} (1 M) ∣∣ Cu X^{2 +} (1 M) ∣ Cu$ , which statement is correct?

AThe electrode written on the left is the cathode
BThe double vertical line represents the salt bridge
CElectrons flow from Cu to Zn through the external wire
DThe Cu electrode is the negative terminal

Answer: B

By convention the anode (oxidation) is written on the left and the cathode on the right, a single vertical line is a phase boundary and the double vertical line is the salt bridge. Here

Zn

is oxidised, so it is the anode and the negative terminal; electrons flow from Zn to Cu in the external wire. Only option B is correct.

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For the galvanic cell written as Zn ∣ ZnX2+ (1M) ∣∣ CuX2+ (1M) ∣ Cu, which statement is correct?

Answer: B

More questions on Galvanic cells and cell notation

For the galvanic cell written as $Zn ∣ Zn X^{2 +} (1 M) ∣∣ Cu X^{2 +} (1 M) ∣ Cu$ , which statement is correct?