Home Chemistry Classification of Elements and Periodicity Ionisation Energy Which of the following statements is/are cor…
Chemistry Classification of Elements and Periodicity Ionisation Energy Single Correct MCQ
Published on: August 12, 2026

Which of the following statements is/are correct?

A
The second IE of boron is greater than carbon.
B
First IE of S is greater than first IE of P.
C
The second IE of Mg is greater than that of P.
D
First IE of Al and Ga are Almost same.

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The correct answer is:
CHECK THE SOLUTION.

(a, d) B + is 1s 2 2s 2 (stable)

C + is 1s 2 2s 2 ( not stable)

∴ II nd IE of B > II nd IE of C

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