JEE Main 2024 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 6 April 2024, Shift 1, Chemistry Q64

Question 64 of 90 in this shift, Chemistry question 4 of 30, Section A.

Which of the following material is not a semiconductor.

(1)Copper oxide
(2)GraphiteOfficial answer
(3)Germanium
(4)Silicon

Official answer

Option 2

NTA final key.

Chapter: The Solid State
Topic: Solid State Defects
Idea tested: Band Theory of Solids

Same idea in other shifts

Asked 2× in all

31 Jan 2024, Shift 2 · Q84The values of conductivity of some materials at 298.15 K in Sm $^{-1}$ are $2.1 \times 10^{3}$ , $1.0 \times 10^{-16}$ , $1.2 \times 10$ ,…MediumNumerical value

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 108 of the 174 JEE Main shifts held from 2017 to 2026.