MCQ
First ionization potential of Mg is less than that of:
  • A
    Li
  • B
    Na
  • C
    Ca
  • D
    Be

Answer

  1. Be
Explanation:

First I.E of Mg is greater than that of Na (because of the higher nuclear charge on Mg) and also that of Li. Due to lts larger size, Ca has lower I.P than Mg. Be has smaller size than Mg. Hence Be has greater first I.P than Mg.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free