Example 1 · difficulty 2/5
A uniform conductor has resistivity 1.5 Ω m, length 2.0 m and cross-sectional area 0.50 m². What is its resistance?
- A. 0.375 Ω
- B. 6.0 Ω
- C. 1.5 Ω
- D. 3.0 Ω
2019 source guide · Chemistry
NEET 2019 Chemistry Electrochemistry Questions
Use this page to connect the official 2019 paper with current Chemistry practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.
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 2 · difficulty 2/5
The resistivity of a material is 2.0 × 10⁻² Ω m. Its conductivity in SI units is:
- A. 2.0 × 10⁻² S m⁻¹
- B. 20 S m⁻¹
- C. 50 S m⁻¹
- D. 5.0 × 10³ S m⁻¹
Example 3 · difficulty 1/5
In a conductivity cell, the electrodes are 1.2 cm apart and the effective area of each electrode is 0.80 cm². What is the cell constant?
- A. 0.67 cm
- B. 0.96 cm⁻¹
- C. 1.04 cm
- D. 1.50 cm⁻¹
The evidence-first practice loop
- 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
- 2. Attempt closed-bookExpose the concept or execution gap before rereading.
- 3. Repair and returnClassify the miss and re-practice after a delay.
Canonical chapter practice
Frequently asked questions
Are these official NEET 2019 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 2019 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.