Verified Solution • 2025–26 Session moderate

QJEEM24Chb44a: JEE Main 2024 Chemistry - Class 11 JEEM24Chb44a Solution: Given below are two statements : Statement I : The correct…

Given below are two statements :

Statement I : The correct order of first ionization enthalpy values of Li,Na,F and Cl is Na<Li<Cl<F.

Statement II : The correct order of negative electron gain enthalpy values of Li,Na,F and Cl is Na<Li<F<Cl

In the light of the above statements, choose the correct answer from the options given below :

Multiple Choice Options

  • A Statement I is true but Statement II is false
  • B Both Statement I and Statement II are false
  • C Statement I is false but Statement II is true
  • D Both Statement I and Statement II are true

Step-by-Step Verified Solution

First ionization enthalpy of F>Cl as first IE decreases down the group.

Similarly, first IE of Li>Na.

So, statement-I is correct.

Electron gain enthalpy of given elements are negative. Considering the magnitude the given order is correct.

Thus, statement-II is correct

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