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JEE Main Electrochemistry — practice questions — page 2

Explore 114 free Electrochemistry questions in JEE Main 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 31–60 of 114.

What the Nernst equation is forRead the answer and worked solution →Which quantity is being described?Read the answer and worked solution →True or false: batteries, fuel cells and corrosionRead the answer and worked solution →Order the steps: find a standard cell potentialRead the answer and worked solution →Flip and pair: symbol with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Tap every factor conductivity depends onRead the answer and worked solution →Assertion and reason: potentialsRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →Complete the dilution behaviourRead the answer and worked solution →True or false: the standard scaleRead the answer and worked solution →Galvanic or electrolytic cell?Read the answer and worked solution →True or false: electrochemistryRead the answer and worked solution →In a galvanic cell, oxidation takes place at the:Read the answer and worked solution →In a galvanic cell, reduction takes place at the:Read the answer and worked solution →On closing the switch, electrons flow to the electrode that is:Read the answer and worked solution →The direction of current flow, against the electron flow, is:Read the answer and worked solution →The potential difference between two electrodes is measured in:Read the answer and worked solution →The cell potential when no current is drawn is called the:Read the answer and worked solution →By accepted convention the anode is drawn on the:Read the answer and worked solution →The potential of a single half-cell on its own:Read the answer and worked solution →The standard hydrogen electrode is assigned a potential of:Read the answer and worked solution →The standard hydrogen electrode holds that value at:Read the answer and worked solution →The standard hydrogen electrode uses platinum coated with:Read the answer and worked solution →Hydrogen gas in the standard electrode is held at a pressure of:Read the answer and worked solution →The electrode of the standard hydrogen cell is dipped in a solution:Read the answer and worked solution →The strongest oxidising agent in the table of potentials is:Read the answer and worked solution →The weakest reducing agent in the table of potentials is:Read the answer and worked solution →The most powerful reducing agent in aqueous solution is:Read the answer and worked solution →The weakest oxidising agent in the table of potentials is:Read the answer and worked solution →

Worked practice questions

What the Nernst equation is for

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Questions
  1. Question
    The Nernst equation describes how potential depends on
    Choices
    1. electrode shape
    2. concentration
    3. wire length
    Correct choice
    concentration
  2. Question
    Without it, an electrode potential is quoted at
    Choices
    1. any concentration
    2. absolute zero
    3. standard conditions
    Correct choice
    standard conditions
  3. Question
    E°(cell) is built from
    Choices
    1. cathode minus anode
    2. anode minus cathode
    3. their sum
    Correct choice
    cathode minus anode
It is the concentration correction to the standard potential. Source: syllabus Chemistry Part I, Ch 2 Electrochemistry.

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Which quantity is being described?

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Items
  1. Item
    Falls as the solution is diluted
    Category
    Conductivity κ
  2. Item
    Depends on solvent and temperature
    Category
    Conductivity κ
  3. Item
    Equals κ ÷ c
    Category
    Molar conductivity Λm
  4. Item
    Rises as the solution is diluted
    Category
    Molar conductivity Λm
  5. Item
    Measured against the hydrogen electrode
    Category
    Electrode potential
  6. Item
    Quoted in volts
    Category
    Electrode potential
Categories
  1. Item
    Conductivity κ
  2. Item
    Molar conductivity Λm
  3. Item
    Electrode potential
Conductivity, molar conductivity and electrode potential are constantly swapped. Source: syllabus Chemistry Part I, Ch 2 Electrochemistry.

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True or false: batteries, fuel cells and corrosion

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Questions
  1. Statement is true
    Yes
    Statement
    Batteries and fuel cells are useful forms of galvanic cell.
  2. Statement is true
    Yes
    Statement
    Corrosion of metals is essentially electrochemical.
  3. Statement is true
    No
    Statement
    A fuel cell is an electrolytic cell.
  4. Statement is true
    Yes
    Statement
    Electrochemical principles matter to the hydrogen economy.
  5. Statement is true
    No
    Statement
    Corrosion involves no redox chemistry at all.
The chapter's applications. Source: syllabus Chemistry Part I, Ch 2 Electrochemistry.

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More Chemistry topics

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