Electrochemistry is a Class 12 Chemistry chapter that carries about 3.2% of the Chemistry questions in NEET. Practise it with 42 questions covering 2 topics, each with an explanation.
Sets of 15 questions that adapt to your level, with an explanation for every answer.
Across the 13 previous year papers, Electrochemistry had 23 questions, about 1.8 a year. The most in one paper was 4, in NEET 2016.
| Paper | Questions from this chapter |
|---|---|
| NEET 2026 | 2 |
| NEET 2025 | 1 |
| NEET 2024 | 2 |
| NEET 2023 | 2 |
| NEET 2022 | 1 |
| NEET 2021 | 2 |
| NEET 2020 | 2 |
| NEET 2019 | 2 |
| NEET 2018 | 0 |
| NEET 2017 | 2 |
| NEET 2016 | 4 |
| Re-AIPMT 2015 | 1 |
| AIPMT 2014 | 2 |
8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.
The function of the salt bridge in a galvanic cell is to:
Answer: D. maintain electrical neutrality of the two solutions by allowing ions to flow
Why: It also completes the circuit and eliminates the liquid junction potential.
Molar conductivity of an electrolyte solution generally increases with:
Answer: B. decreasing concentration (dilution)
Why: Molar conductivity increases on dilution because ionic interactions decrease and, for weak electrolytes, the degree of dissociation increases.
The volume of H₂ released at STP by 1 faraday in the electrolysis of acidulated water is:
Answer: D. 11.2 L
Why: 2H⁺ + 2e⁻ → H₂, so one mole of electrons gives half a mole of H₂.
The emf of a cell depends on the concentration of the electrolytes, as shown by the:
Answer: B. Nernst equation
Why: E = E° − (RT/nF) ln Q.
In the dry (Leclanché) cell, the anode is made of:
Answer: C. zinc
Why: The cathode is a graphite rod surrounded by MnO₂ and carbon.
The degree of dissociation of a weak electrolyte is given by:
Answer: D. α = Λm/Λ°m
Why: This is used to calculate the dissociation constant.
In a fuel cell using hydrogen and oxygen, the product formed is:
Answer: C. water
Why: The overall reaction is 2H₂ + O₂ → 2H₂O.
According to the Nernst equation, the electrode potential of a cell depends on:
Answer: B. the standard electrode potential and the concentration/pressure of the reacting species
Why: The Nernst equation, E = E° - (RT/nF)lnQ, relates cell potential to the standard potential and the reaction quotient (concentrations/pressures), at a given temperature.
Electrochemistry carries about 3.2% of the Chemistry questions in NEET. Across the 13 previous year papers on NeetVictory it appeared 23 times, about 1.8 questions a year.
Electrochemistry is a Class 12 Chemistry chapter in the NCERT syllabus.
NeetVictory has 42 practice questions on Electrochemistry, each with an explanation, in sets of 15 that adapt to your level. This page shows a free sample.
NeetVictory