JEE Main 2026 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 5 April 2026, Shift 1, Chemistry Q60

Question 60 of 75 in this shift, Chemistry question 10 of 25, Section A.

Which of the following is NOT a physical or chemical characteristics of interstitial compounds?

(1)They have high melting points, higher than those of pure metals.
(2)They are very soft and ionic in nature.Official answer
(3)They retain metallic conductivity.
(4)They are chemically inert and usually non-stoichiometric.

Official answer

Option 2

NTA final key.

Chapter: The d- and f-Block Elements
Topic: d-Block Elements
Idea tested: Interstitial Compounds Properties

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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.