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ISC Class 12 Electrochemistry — practice questions — page 2

Explore 50 free Electrochemistry questions in ISC Class 12 Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Electrochemistry questions and exercises with answers

Showing questions 31–50 of 50.

Galvanic or electrolytic cell?Read the answer and worked solution →True or false: electrochemistryRead the answer and worked solution →Match each electrode to the potential your syllabus givesRead the answer and worked solution →Assertion and reason: potentialsRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →Kohlrausch's lawRead the answer and worked solution →Which half-reaction from the notes represents reduction?Read the answer and worked solution →The Nernst equation at 25°C for a cell reaction is:Read the answer and worked solution →Tap every factor conductivity depends onRead the answer and worked solution →In a Daniell cell, $\mathrm{Zn} | \mathrm{Zn}^{2+}(aq) \,||\, \mathrm{Cu}^{2+}(aq) | \mathrm{Cu}$, the standard EMF is calculated as:Read the answer and worked solution →NEET · Chemistry · Galvanic vs Electrolytic CellRead the answer and worked solution →Order the steps: find a standard cell potentialRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Flip and pair: symbol with meaningRead the answer and worked solution →Complete the dilution behaviourRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Galvanic cell or electrolytic cell?Read the answer and worked solution →The potential developed between a metal rod and its solution due to oxidation is called:Read the answer and worked solution →The standard reduction potential of the standard hydrogen electrode (SHE) is assigned the value:Read the answer and worked solution →In a GALVANIC cell, the ANODE is:Read the answer and worked solution →

Worked practice questions

Galvanic or electrolytic cell?

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Items
  1. Item
    Makes electricity
    Category
    Galvanic
  2. Item
    Reaction natural
    Category
    Galvanic
  3. Item
    Chemical to elec
    Category
    Galvanic
  4. Item
    Uses electricity
    Category
    Electrolytic
  5. Item
    Reaction is forced
    Category
    Electrolytic
  6. Item
    Elec to chemical
    Category
    Electrolytic
Categories
  1. Item
    Galvanic
  2. Item
    Electrolytic
Instructions
Tap a description, then tap the kind of cell it is.
_Source: syllabus Chemistry Electrochemistry, Electrochemistry_

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True or false: electrochemistry

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Questions
  1. Statement is true
    Yes
    Statement
    Oxidation happens at the anode.
  2. Statement is true
    Yes
    Statement
    Reduction happens at the cathode.
  3. Statement is true
    Yes
    Statement
    The Nernst equation is used to calculate the emf of a galvanic cell.
  4. Statement is true
    No
    Statement
    A galvanic cell needs an external supply to drive its reaction.
Instructions
Decide whether each statement about cells is true or false.
_Source: syllabus Chemistry Electrochemistry, Electrochemistry_

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Match each electrode to the potential your syllabus gives

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Matching pairs
  1. Left
    K⁺/K
    Right
    −2.93 V
  2. Left
    Mg²⁺/Mg
    Right
    −2.37 V
  3. Left
    Cr³⁺/Cr
    Right
    −0.74 V
The five values printed in Exercise 2.2. Source: syllabus Chemistry Part I, Ch 2 Electrochemistry.

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