2021 source guide · Chemistry

NEET 2021 Chemistry Periodic Properties Questions

Use this page to connect the official 2021 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 2/5

Which feature of Newlands' arrangement directly illustrates the forced placement of elements in his scheme?

A. He left systematic gaps for elements that had not yet been discovered
B. He placed all noble gases between the halogens and alkali metals
C. He ordered iodine before tellurium using atomic numbers
D. He placed cobalt and nickel in the same slot and associated them with the column containing fluorine, chlorine and bromine

Example 2 · difficulty 1/5

Which statement is Mendeleev's periodic law?

A. The properties of elements are periodic functions of their atomic masses
B. The properties of elements depend only on their physical states
C. The atomic numbers of elements recur periodically
D. Every eighth element has exactly the same properties

Example 3 · difficulty 2/5

Which pair of considerations primarily guided Mendeleev while arranging elements in his periodic table?

A. Alphabetical order and year of discovery
B. Increasing atomic mass and similarity in chemical properties
C. Density and physical state alone
D. Atomic number and neutron number

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 2021 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 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.