The correct order of second I.E

CHEMISTRY · Single correct · CBSE · Chemistry · Classification of Elements and Periodicity in Properties · Classification of Elements and Periodicity in Properties

Problem

The correct order of second I.E. of C, N, O and F are in the order : (1) F>O>N>CF > O > N > C (2) C>N>O>FC > N > O > F (3) O>N>F>CO > N > F > C (4) O>F>N>CO > F > N > C

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