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NEET UG Electrochemistry — practice questions — page 3

Explore 70 free Electrochemistry questions in NEET UG 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 61–70 of 70.

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 →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 →In a GALVANIC cell, the ANODE is:Read the answer and worked solution →

Worked practice questions

The Nernst equation at 25°C for a cell reaction is:

  1. $E = E° - (0.0591/n) \log Q$
  2. $E = E° + (0.0591/n) \log Q$
  3. $E = E° \times (RT/nF) \ln Q$
  4. $E = E° - n F \log Q$
Show answer and solution

Correct answer: A. $E = E° - (0.0591/n) \log Q$

Nernst equation at 25°C: E = E° − (0.0591/n) log Q (using base-10 log; for natural log, it's E° − (RT/nF) ln Q). Predicts EMF at non-standard conditions.

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Tap every factor conductivity depends on

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Questions
  1. Items
    1. Text
      Concentration of the electrolyte
      Matches the category
      Yes
    2. Text
      Nature of the solvent
      Matches the category
      Yes
    3. Text
      Temperature
      Matches the category
      Yes
    4. Text
      Colour of the container
      Matches the category
      No
    5. Text
      Shape of the electrodes
      Matches the category
      No
    Category
    Conductivity of an electrolytic solution depends on
Your syllabus lists exactly three. Source: syllabus Chemistry Part I, Ch 2 Electrochemistry.

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NEET · Chemistry · Galvanic vs Electrolytic Cell

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Items
  1. Item
    Spontaneous redox reaction
    Answer
    left
  2. Item
    Requires external EMF
    Answer
    right
  3. Item
    Daniell cell
    Answer
    left
  4. Item
    Electrolysis of NaCl(aq)
    Answer
    right
  5. Item
    Anode is negative
    Answer
    left
  6. Item
    Anode is positive
    Answer
    right
Categories
Left
Galvanic
Right
Electrolytic
Instructions
Sort each property: galvanic cell or electrolytic cell?

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