2025 source guide · Chemistry

NEET 2025 Chemistry Periodic Properties Questions

Use this page to connect the official 2025 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 100 verified questions →Check official NTA archive ↗

What to master

periodic trends, effective nuclear charge and anomalous behaviour.

Original practice preview

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

Example 1 · difficulty 1/5

Which statement gives the modern periodic law?

A. Elemental properties are periodic functions of alphabetical symbols
B. Elemental properties depend periodically on atomic mass only
C. Every period must contain eight elements
D. The physical and chemical properties of elements are periodic functions of their atomic numbers

Example 2 · difficulty 2/5

How does the modern periodic law resolve the placement of isotopes of one element?

A. All isotopes occupy the same position because they have the same atomic number
B. Each isotope occupies a separate period because its mass is different
C. Isotopes are omitted because their atomic masses are not equal
D. Only the isotope with the greatest abundance is assigned a position

Example 3 · difficulty 3/5

Which ordering most clearly demonstrates why increasing atomic number is more reliable than strictly increasing atomic mass?

A. Chlorine is placed before argon because chlorine has the lower atomic mass
B. Argon is placed before potassium even though argon's average atomic mass is slightly greater
C. Potassium is placed before calcium because potassium has the lower atomic mass
D. Sodium is placed before magnesium because sodium has the lower atomic mass

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

Classification of Elements and Periodicity in Properties →

Frequently asked questions

Are these official NEET 2025 Chemistry Periodic Properties 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 2025 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.