2018 source guide · Chemistry

NEET 2018 Chemistry Solutions Questions

Use this page to connect the official 2018 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.

Practice 119 verified questions →Check official NTA archive ↗

What to master

concentration terms, vapour pressure, colligative properties and abnormal molar mass.

Original practice preview

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

Example 1 · difficulty 4/5

Assuming complete dissociation, the freezing point of a 0.020 molal aqueous solution of potassium ferricyanide, K₃[Fe(CN)₆], is closest to (Kf for water = 1.86 K kg mol⁻¹):

A. −0.037 °C
B. −0.075 °C
C. −0.149 °C
D. −0.186 °C

Example 2 · difficulty 2/5

Which of the following pairs of liquids is expected to form a nearly ideal solution?

A. Chloroform and acetone
B. Ethanol and acetone
C. Phenol and aniline
D. n-Hexane and n-heptane

Example 3 · difficulty 1/5

Which description best defines a solution in the NCERT treatment of liquid and solid mixtures?

A. A homogeneous mixture of two or more components
B. A heterogeneous mixture with a visible boundary
C. A pure substance containing only one kind of molecule
D. A suspension whose particles settle on standing

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

Solutions →

Frequently asked questions

Are these official NEET 2018 Chemistry Solutions 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 2018 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.