JEE Main 2026 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 5 April 2026, Shift 2, Chemistry Q53

Question 53 of 75 in this shift, Chemistry question 3 of 25, Section A.

The covalent radii of atoms A and B are

r_A

and

r_B

, respectively. The covalent bond length and total length of AB molecule are respectively

(1) $(r_A+r_B),\ 2(r_A+r_B)$ Official answer
(2) $\frac{1}{2}(r_A+r_B),\ (r_A+r_B)$
(3) $(r_A+r_B),\ (r_A+r_B)$
(4) $2(r_A+r_B),\ \frac{1}{2}(r_A+r_B)$

Official answer

Option 1

NTA final key.

Chapter: Classification of Elements and Periodicity in Properties
Topic: Periodic Trends
Idea tested: Van der Waals vs Covalent vs Metallic Radii

Same topic in other shifts

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.