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Question

In a galvanic cell, the correct statement will be:

A
Current flows from the anode to the cathode
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B
Anode is the positive terminal
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C
If Ecell<0, it is a spontaneous reaction
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D
Cathode is the positive terminal
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Solution

The correct option is D Cathode is the positive terminal

Galvanic cell:
An electrochemical cell that derives electrical energy from a spontaneous redox reaction taking place within the cell

Spontaneous reaction thus ΔG0
we know that ΔG=nEF
nEF0
Ecell0

oxidation at Anode
At which electrons are generated.

Reduction at Cathode
At which electrons are consumed
Electrons flow from the anode to the cathode thus direction of current is from cathode to anode, making the cathode the positive terminal.


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