Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: Noble gases have positive electron affinity. Reason: Noble gases have stable closed shell electronic configuration.A) If both Assertion: and Reason: are true and the Reason: is the correct explanation of the Assertion:
B) If both Assertion: and Reason: are true but the Reason: is not the correct explanation of the Assertion:
C) If Assertion: is true but Reason: is false
D) If both Assertion: and Reason: are false
Correct Answer: A
Solution :
Noble gases have stable closed shell electronic configuration. Thus, in order to add an electron to an isolated noble gas atom, energy have to given. Hence, noble gases have positive electron affinity. Hence, Reason: is correct for Assertion:.
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