2021 source guide · Chemistry

NEET 2021 Chemistry Electrochemistry Questions

Connect the official 2021 paper with current Chemistry practice without labelling original previews as PYQs.
Practice 250 verified questions →Check official NTA archive ↗
250 original questions · explicit provenance labels
ChemistryPlate 35
NeetVellum atlas · fig. chemistry
35

What to master

conductance, electrochemical cells, the Nernst equation and electrolysis.

Original practice preview

These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.

Example 1 · difficulty 3/5

Why is an alternating-current source used when measuring the resistance of an ionic solution in a conductivity cell?

  • A. It converts the electrolyte into an electronic conductor.
  • B. It makes the cell constant independent of electrode geometry.
  • C. It permanently deposits all cations and anions on the same electrode.
  • D. It minimises electrolysis and electrode polarisation that would disturb the resistance measurement.

Example 2 · difficulty 2/5

A solution has conductivity 2.0 × 10⁻² S cm⁻¹. What is the same conductivity expressed in S m⁻¹?

  • A. 2.0 S m⁻¹
  • B. 2.0 × 10⁻⁴ S m⁻¹
  • C. 0.20 S m⁻¹
  • D. 200 S m⁻¹

Example 3 · difficulty 3/5

Two cells X and Y contain the same solution at the same temperature. Relative to Y, cell X has twice the electrode area and half the electrode separation. What is the ratio of their measured conductances, Gₓ/Gᵧ?

  • A. 1/4
  • B. 4
  • C. 1/2
  • D. 2

The evidence-first practice loop

  1. 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
  2. 2. Attempt closed-bookExpose the concept or execution gap before rereading.
  3. 3. Repair and returnClassify the miss and re-practice after a delay.

Canonical chapter practice

Electrochemistry →

Frequently asked questions

Are these official NEET 2021 Chemistry Electrochemistry PYQs?

No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.

How should I use the NEET 2021 paper?

Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.

Built by NeetVellum · original practice, explicit provenance, no fabricated PYQ claims.
NEET 2021 Chemistry Electrochemistry Questions · NeetVellum