Which of the following statement is TRUE for the electrochemical Daniel cell :

Electron flow from Zinc electrode to Copper electrode.

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Current flows from zinc electrode to copper electrode.

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Cation moves towards copper electrode.

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Cation moves towards zinc electrode.

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Solution

The correct option is A Electron flow from Zinc electrode to Copper electrode.
During reaction of $Z n \to {Z n}^{2 +} + {2 e}^{-}$ extra electron goes from anode to cathode or flow of $e^{-}$ from Zinc to Copper takes place and current flows from Copper to Zinc.

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Similar questions

Assertion: In a Daniell cell, electrons flow from zinc electrode to copper electrode outside the cell.

Reason: In Daniell cell, Zn electrode is anode and Cu is cathode.

With respect to a voltaic cell using copper and zinc rods as electrodes and dilute $H_{2} {S O}_{4}$ as an electrolyte, the current flows from zinc to copper outside the cell and copper to zinc inside the cell.

Q. Other things being equal, the life of a Daniell cell may be increased by
(1) keeping temperature low
(2) using large copper electrode
(3) decreasing concentration of copper ions
(4) using zinc electrodes

Q. The emf of the cells obtained by combining zinc and copper electrodes of the Daniell cell with calomel electrodes are

1.083 v o l t

and

- 0.018 v o l t

respectively at

25^{\circ} C

. If the reduction potential of normal calomel electrode is

+ 0.28

volt, find he emf of the Daniell cell.

In a voltaic cell using copper and zinc as electrodes, which of the following is true?

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Which of the following statement is TRUE for the electrochemical Daniel cell :

The correct option is A Electron flow from Zinc electrode to Copper electrode.During reaction of Zn→Zn2++2e− extra electron goes from anode to cathode or flow of e− from Zinc to Copper takes place and current flows from Copper to Zinc.

The correct option is A Electron flow from Zinc electrode to Copper electrode.
During reaction of $Z n \to {Z n}^{2 +} + {2 e}^{-}$ extra electron goes from anode to cathode or flow of $e^{-}$ from Zinc to Copper takes place and current flows from Copper to Zinc.