JEE Main 2025 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 4 April 2025, Shift 2, Chemistry Q57

Question 57 of 75 in this shift, Chemistry question 7 of 25, Section A.

The elements of Group 13 with highest and lowest first ionisation enthalpies are respectively :

(1)B & Ga
(2)B & InOfficial answer
(3)Tl & B
(4)B & Tl

Official answer

Option 2

NTA final key.

Chapter: Classification of Elements and Periodicity in Properties
Topic: Group 13 & 14
Idea tested: Group 13 Ionization Energy Trend

Same idea in other shifts

Asked 5× in all

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9 Apr 2024, Shift 2 · Q68Match List I with List II List I | List II A. Melting Point [K] | I. $\mathrm{Tl>In>Ga>Al>B}$ B. Ionic Radius [ $\mathrm{M^{+3}}$ /pm] | II.…HardMatch the list

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.