JEE Mains 28-July-2022 Shift 1 Solved Paper

Section: Chemistry

Question : 65 of 90

Marks: +1, -0

In which of the following pairs, electron gain enthalpies of constituent elements are nearly the same or identical?
(A) Rb and Cs
(B) Na and K
(C) Ar and Kr
(D) I and At
Choose the correct answer from the options given below:

[28-Jul-2022-Shift-1]

(A) and (B) only
(B) and (C) only
(A) and (C) only
(C) and (D) only

Validate

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