Electrodes

IMPORTANT

Electrodes: Overview

This topic covers concepts such as Electrodes, Anode, and Cathode.

Important Questions on Electrodes

MEDIUM
IMPORTANT

Anode in the galvanic cell is:

MEDIUM
IMPORTANT

When an aqueous solution of CuCl2 is electrolysed using Pt inert electrodes, the reaction at cathode and anode respectively are

EASY
IMPORTANT

Which of the following statements is/are true for an electrochemical cell?

EASY
IMPORTANT

For the given cell: Mg Mg2+Cu2+ Cu
 

EASY
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In a galvanic cell, which one of the following statement is not correct?

EASY
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Among the following, which reaction take place at anode?

EASY
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What will happen if dil. H2SO4 is electrolysed between Pt electrode?

EASY
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Cotyledons are also called-

EASY
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On the basis of electrochemical theory of corrosion, in aqueous solution reaction occuring at the cathode is.

EASY
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During the electrolysis of fused NaCl, which of these occur at anode?

EASY
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During electrolysis, the species discharged at the cathode are

MEDIUM
IMPORTANT

When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes cathode and anode are respectively? 

 

EASY
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In electrolytic purification, which of the following is made of impure metal?

MEDIUM
IMPORTANT

A half cell is prepared by dipping Ag electrode in a solution containing KCl and some AgCl. Half cell is used as cathode during the cell reaction. Quantity of AgCl will –

EASY
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A hypothetical electrochemical cell is shown below.

             A A + xM B + yM B

The emf measured is 0.20V. The cell reaction is

EASY
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Indicator electrode is

EASY
IMPORTANT

Which of the following reaction is possible at anode?