These questions consist of two statements each, printed as statemen...

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These questions consist of two statements each, printed as statement- 1 and statement-2, while
\( \mathrm{P} \) answering these questions you are required to choose any one of the following responses.

W
(A) If both statements are true and the statement-2 is the correct explanation of statement- 1 .
(B) If both statements are true but statement-2 is not the correct explanation of statement- 1 .
(C) If statement- 1 is true but the statement- 2 is false.
(D) If statement- 1 is false but the statement-2 is true.
(E) Both statements are false.
Statement-1 : First ionisation energy for nitrogen is lower than oxygen.
Statement-2 : Across a period, effective nuclear charge decreases.
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