Match List I with List II List-I List-II --- --- --- --- A. Melting point [ K ] I. Tl In Ga Al B B. Ionic Radius [ M +3 / pm ] II. B Tl Al approx Ga In C. \!\!Δ\!\! i H 1 [ \!\! \!\! kJ \!\! \!\! mo l -1 ] III. Tl In Al Ga B D Atomic Radius [ pm ] IV. B Al Tl In Ga Choose the correct answer from the options given below :

Chemistry · p-Block (I) (Grp. 13, 14)

JEE Main 2024 — 9 April, Shift 2 — Question 69

Match List I with List II

List-I	List-II
A.	Melting point $\left[ \text{K} \right]$	I.	$\text{Tl}>\text{In}>\text{Ga}>\text{Al}>\text{B}$
B.	Ionic Radius $\left[ {{\text{M}}^{+3}}/\text{pm} \right]$	II.	$\text{B}>\text{Tl}>\text{Al}\approx \text{Ga}>\text{In}$
C.	${{\text{ }\!\!\Delta\!\!\text{ }}_{\text{i}}}{{\text{H}}_{1}}$ $\left[ \text{ }\!\!~\!\!\text{ kJ }\!\!~\!\!\text{ mo}{{\text{l}}^{-1}} \right]$	III.	$\text{Tl}>\text{In}>\text{Al}>\text{Ga}>\text{B}$
D	Atomic Radius $\left[ \text{pm} \right]$	IV.	$\text{B}>\text{Al}>\text{Tl}>\text{In}>\text{Ga}$

Choose the correct answer from the options given below :

Option A:
A-III, B-IV, C-I, D-II
Option B:
A-II, B-III, C-IV, D-I
Option C:
A-IV, B-I, C-II, D-III
Correct
Option D:
A-I, B-II, C-III, D-IV

Answer: C

Step-by-step solution

Melting point : $\mathrm{B}>\mathrm{A} \ell>\mathrm{T} \ell>\mathrm{In}>\mathrm{Ga}$ Ionic radius $\left(\mathrm{M}^{+3} / \mathrm{pm}\right): \mathrm{T} \ell>\mathrm{In}>\mathrm{Ga}>\mathrm{A} \ell>\mathrm{B}$

$\left(\Delta_{\mathrm{IE}} \mathrm{H}\right)_{1}\left[\frac{\mathrm{~kJ}}{\mathrm{~mol}}\right]: \mathrm{B}>\mathrm{T} \ell>\mathrm{A} \ell \approx \mathrm{Ga}>\mathrm{In}$

Atomic radius (in pm ) : $\mathrm{T} \ell>\mathrm{In}>\mathrm{A} \ell>\mathrm{Ga}>\mathrm{B}$

Answer key and solution verified before publishing.

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Exam: JEE Main 2024
Paper: 9 April, Shift 2
Subject: Chemistry
Chapter: p-Block (I) (Grp. 13, 14)
Topic: Introduction & Properties of Group 13: Boron Family