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JEE Main 20253 AprilEvening Shift
Exam
JEE Main
Year
2025
Date
3 April
Shift
Evening Shift
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

JEE Main 2025 · 3 April · Evening Shift · Chemistry · Classification of Elements and Periodicity in Properties

The correct orders among the following are Atomic radius : B Al Ga...

The correct orders among the following are
Atomic radius : B<Al<Ga<In<Tl\mathrm{B} \lt \mathrm{Al} \lt \mathrm{Ga} \lt \mathrm{In} \lt \mathrm{Tl}
Electronegativity : Al<Ga<In<Tl<B\mathrm{Al} \lt \mathrm{Ga} \lt \mathrm{In} \lt \mathrm{Tl} \lt \mathrm{B}
Density : Tl<In<Ga<Al<B\mathrm{Tl} \lt \mathrm{In} \lt \mathrm{Ga} \lt \mathrm{Al} \lt \mathrm{B}
1st Ionisation Energy : In <Al<Ga<Tl<B\lt \mathrm{Al} \lt \mathrm{Ga} \lt \mathrm{Tl} \lt \mathrm{B}
Choose the correct answer from the options given below :

Options

  1. AB and D Only
  2. BA and C Only
  3. CC and D Only
  4. DA and B Only

Correct answer

A. B and D Only

Step-by-step solution

BAlGaInTl
Atomicradius</td></tr><tr><td>(pm)\begin{array}{l} Atomic radius</td></tr><tr><td>(pm)\end{array}88143135167170
Electronegativity21.51.61.71.8
Density</td></tr><tr><td>(g/cm3)\begin{array}{l} Density</td></tr><tr><td>\left(g / cm^3\right)\end{array}2.352.75.97.3111.85
Ionisation</td></tr><tr><td>Energy(kJ/mol)\begin{array}{l} Ionisation</td></tr><tr><td>Energy (kJ/mol)\end{array}</td><td>801</td><td>577</td><td>579</td><td>558</td><td>589</td></tr></table><br/>RadiusOrder</td><td>801</td><td>577</td><td>579</td><td>558</td><td>589</td></tr></table><br />Radius Order\quad \mathrm{T} \ell \gt \mathrm{In} \gt \mathrm{A} \ell \gt \mathrm{Ga} \gt \mathrm{B}<br/>ENOrder<br />EN Order\mathrm{B}>\gt\mathrm{T}ℓ>\ell \gt\mathrm{In}>\gt\mathrm{Ga}>\gt\mathrm{Al}
Density Order \mathrm{T} \ell \gt \mathrm{In} \gt \mathrm{Ga} \gt \mathrm{A} \ell \gt \mathrm{B}<br/><br />\mathrm{IE}_1OrderOrder\mathrm{B}>\gt\mathrm{T}ℓ>\ell \gt\mathrm{Ga}>\gt\mathrm{A}ℓ>\ell \gt\mathrm{In} Practice Classification of Elements and Periodicity in Properties on Quantrex Academy →

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