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Given the following assertion and reason, choose the correct answer:

(Assertion): Noble gases have a large positive electron gain enthalpy.

(Reason): Electron has to enter the next principal quantum level.

$\begin{array}{1 1} (A) \text{Assertion is True, But the Reason is False }\\ (B)\text{ Assertion is False, But the Reason is True} \\ (C) \text{Assertion and Reason are Correct and the Reason is the correct explanation of the Assertion} \\ (D) \text{Assertion and Reason are Correct but the Reason is NOT the correct explanation of the Assertion}\end{array}$

1 Answer

Noble gases have large positive electron gain enthalpies. This is because the electron has to enter the next higher principal level, adding to a very unstable electronic configuration Therefore (C) is the correct answer..
answered Mar 15, 2014 by balaji.thirumalai
edited Apr 9 by sharmaaparna1

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