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JEE • CHEMISTRY • ELECTRO CHEMISTRY

Electro chemistry practice · Mixed difficulty

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Practice format and chapter quiz

These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.

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Showing 391-396 of 396 questions

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391 Medium

391 of 396

Understanding +4 | -1

The product, which is not obtained during the electrolysis of brine solution is

View answer and explanation

Correct option: B

\mathrm{HCl}

Option B (

HCl

) is correct because during the electrolysis of brine solution, hydrogen gas, chlorine gas, and sodium hydroxide are produced, but hydrochloric acid is not.

392 Easy

392 of 396

Application +4 | -1

The amount of electricity required to produce one mole of copper from copper sulphate solution will be

View answer and explanation

Correct option: C

2 F

Option C (2 F) is correct because the production of one mole of copper from copper sulfate requires two moles of electrons, which corresponds to 2 Faradays of electricity.

393 Medium

393 of 396

Understanding +4 | -1

Which cell will measure standard electrode potential of copper electrode?

View answer and explanation

Correct option: C

\mathrm{Pt}(s) \mid \mathrm{H}_2(g, 1

bar

)\left|\mathrm{H}^{+}(a q, 1 \mathrm{M})\right|\left|\mathrm{Cu}^{2+}(a q, 1 \mathrm{M})\right| \mathrm{Cu}

Option C is correct because a standard electrode potential requires all species to be at standard conditions (1 bar for gases, 1 M for solutions).

394 Easy

394 of 396

Understanding +4 | -1

The correct order of equivalent conductivity at infinite dilution of

LiCl,\,\,NaCl

and

KCl

View answer and explanation

Correct option: B

KCl > NaCl > LiCl

The correct answer is B (

KCl > NaCl > LiCl

) because the equivalent conductivity at infinite dilution depends on the ionic mobility, which is inversely related to the hydrated ionic size. Smaller ions are more heavily hydrated, reducing their mobility.

395 Easy

395 of 396

Remembering +4 | -1

The calomel electrode is a :

View answer and explanation

Correct option: B

Reference electrode

Option B (Reference electrode) is correct because the calomel electrode is a well-defined half-cell with a known and stable potential, making it suitable as a reference for electrochemical measurements.

396 Medium

396 of 396

Application +4 | -1

Resistance of a

0.1 \mathrm{~M} \mathrm{~KC1}

solution in a conductance cell is

300 \mathrm{~ohm}

and specific conductance of

0.1 \mathrm{~M} \mathrm{~KC1}

1.33 \times 10^{-2} \mathrm{~ohm}^{-}

{ }^1 \mathrm{~cm}^{-1}

. The resistance of

0.1 \mathrm{M} \mathrm{~NaCl}

solution in the same cell is

400 \mathrm{~ohm}

. The equivalent conductance of the

0.1 \mathrm{~M} \mathrm{~NaCl}

solution (in ohm

{ }^{-1} \mathrm{~cm}^2 /

gmeq.) is

View answer and explanation

Correct option: A

100

Option A (100) is correct because it calculates the equivalent conductance using the given resistance and specific conductance.

Revision notes and key takeaways

Review ELECTRO CHEMISTRY in your textbook or class notes, then use this set to check your understanding.

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Electro chemistry practice · Mixed difficulty

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