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3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
Which of the following has the highest first ionisation energy
  • A
    $Li$
  • B
    $Be$
  • C
    $B$
  • ✓
    $C$
✓

Answer

Correct option: D.
$C$
d
(d) The ionisation energy of $Li,\,Be,\,B$ and $C$ is $520, 899, 801, 1086 \,kJ / mol $ respectively hence, carbon has highest $I{E_1}.$

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