Q18 / 104 · NTA Abhyas (NEET) 2020 · Chemistry · p Block Elements (Group 13 & 14)

Boron does not form B3+ ion because

  • Correct answer
    A
    it has small size and high ionization energy
  • B
    it has high electronegativity
  • C
    it has high charge density (charge/radius ratio)
  • D
    none of the above

Solution

The total energy to produce a B3+ ion (or the sum of the first three ionization energies) is too large to be compensated by lattice energies (in case of solids) or by hydration energies (in aqueous solution).

Hence, the correct answer is option: 'A'.

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