Easy MCQ +4 / -1 PYQ · JEE Mains 2024

The correct order of the first ionization enthalpy is

  1. A $\mathrm{Ga}>\mathrm{Al}>\mathrm{B}$
  2. B $\mathrm{Tl}>\mathrm{Ga}>\mathrm{Al}$ Correct answer
  3. C $\mathrm{Al}>\mathrm{Ga}>\mathrm{Tl}$
  4. D $\mathrm{B}>\mathrm{Al}>\mathrm{Ga}$

Solution

<p>I. $\mathrm{E}_1$ of $\mathrm{TI}=589 \mathrm{~kJ} / \mathrm{mol}$</p> <p>I. $\mathrm{E}_1$ of $\mathrm{Ga}=579 \mathrm{~kJ} / \mathrm{mol}$</p> <p>I. $\mathrm{E_1}$ of $\mathrm{Al}=577 \mathrm{~kJ} / \mathrm{mol}$</p>

About this question

Subject: Chemistry · Chapter: Periodic Table and Periodicity · Topic: Periodic Trends

This question is part of PrepWiser's free JEE Main question bank. 131 more solved questions on Periodic Table and Periodicity are available — start with the harder ones if your accuracy is >70%.

More Periodic Table and Periodicity questions

Drill 25 more like these. Every day. Free.

PrepWiser turns these solved questions into a daily practice loop. Chapter-wise drills, full mocks, AI doubt chat. No auto-renew.

Start free →