JEE MAIN - Chemistry (2025 - 29th January Morning Shift - No. 20)
Given below are two statements :
Statement (I) : The radii of isoelectronic species increases in the order.
Mg²⁺ < Na⁺ < F⁻ < O²⁻
Statement (II) : The magnitude of electron gain enthalpy of halogen decreases in the order.
Cl > F > Br > I
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement I is incorrect but Statement II is correct
Both Statement I and Statement II are correct
Statement I is correct but Statement II is incorrect
Both Statement I and Statement II are incorrect
Explanation
(i) For isoelectronic species -ve charge increases, radii increases.
(ii) Magnitude of E.G.E : $\mathrm{Cl}>\mathrm{F}>\mathrm{Br}>\mathrm{I}$
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