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JEE Main 20254 AprilEvening Shift

Exam: JEE Main
Year: 2025
Date: 4 April
Shift: Evening Shift
Subject: Chemistry
Chapter: Classification of Elements and Periodicity in Properties

JEE Main 2025 · 4 April · Evening Shift · Chemistry · Classification of Elements and Periodicity in Properties

The elements of Group 13 with highest and lowest first ionisation...

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

Options

A $\mathrm{B} ~\&~ \mathrm{Ga}$
BB & Tl
C $\mathrm{Tl} ~\&~ \mathrm{~B}$
DB & In

Correct answer

D. B & In

Step-by-step solution

IE order

\mathrm{B} \gt \mathrm{T} \ell \gt \mathrm{Ga} \gt \mathrm{Al} \gt \mathrm{In}

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