A cell constituted by two electrodes A (EAAEA+/A0 = 0.35 V) and B (EBBEB+/B0 = + 0.42 V) has value of EcellEcell0 equal to _________. - Chemistry

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A cell constituted by two electrodes A (`"E"_("A"^+//"A")^0` = 0.35 V) and B (`"E"_("B"^+//"B")^0` = + 0.42 V) has value of `"E"_"cell"^0` equal to _________.


  • 0.77 V

  • 0.07 V

  • –0.77 V

  • –0.07 V



A cell constituted by two electrodes A (`"E"_("A"^+//"A")^0` = 0.35 V) and B (`"E"_("B"^+//"B")^0`= + 0.42 V) has a value of `"E"_"cell"^0` equal to 0.07 V.


The species which has lesser value of standard reduction potential (E0) is better reducing agent.

A ⇒ Reducing agent = it will undergo oxidation = Anode

B ⇒ Oxidising agent = it will undergo reduction = Cathode

`"E"_"cell"^0 = "E"_"cathode"^0 - "E"_"anode"^0`

`"E"_"cell"^0 = + 0.42 " V" - 0.35 " V"`

`"E"_"cell"^0 = 0.07` V

Concept: Electrolytic Cell
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Chapter 5: Electrochemistry - Multiple choice questions


SCERT Maharashtra Question Bank 12th Standard HSC Chemistry Maharashtra State Board
Chapter 5 Electrochemistry
Multiple choice questions | Q 9


Answer the following in one or two sentences.

How many electrons would have a total charge of 1 coulomb?

Answer the following in brief.

Write electrode reactions for the electrolysis of aqueous NaCl.

Answer the following in brief.

How many moles of electrons are passed when 0.8-ampere current is passed for 1 hour through molten CaCl2?

Answer the following:

Explain electrolysis of molten NaCl.

Answer the following:

What current strength in amperes will be required to produce 2.4 g of Cu from CuSO4 solution in 1 hour? Molar mass of Cu = 63.5 g mol–1.

Answer the following:

How will you calculate the moles of electrons passed and mass of the substance produced during electrolysis of a salt solution using reaction stoichiometry?

During electrolysis of molten NaCl, which of the following statements is correct?

When molten ionic compound is electrolyzed, a metal is formed at _______.

Name the process by which water produces hydrogen gas at cathode during electrolysis of aqueous NaCl.

Draw a neat and labelled diagram for electrolysis of fused NaCl.

Draw a well labelled diagram of a conductivity cell. Also write net cell reactions involved in electrolysis of aqueous NaCl.

Write a mathematical formula for mole ratio. How long will it take to produce 2.415g of Ag metal from its salt solution by passing a current of 3A? Molar mass of Ag= 107.9 g mol-1.

How many moles of electrons are required for reduction of 2 moles of Zn2+ to Zn? How many Faradays of electricity will be required?

During the electrolysis of aqueous NaCl, the gas liberated at the cathode is ______.


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