1.

(A) Valency of xenon in second excited state is two (R) Xenon forms XeF_2in its second excited electronic state

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Both (A) and (R) are TRUE and (R) is the correct explanation of (A)
Both (A) and (R) are true and (R) is not the correct explanation of (A)
(A) is true but (R) is false
Both (A) and (R) are false

Answer :D


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