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JEE Advanced 2007Paper 1
Exam
JEE Advanced
Year
2007
Paper
Paper 1
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

JEE Advanced 2007 · Paper 1 · Chemistry · p Block Elements (Group 13 & 14)

Statement I Boron always forms covalent bond Statement II The small...

Statement I Boron always forms covalent bond Statement II The small size of B3+\mathrm{B}^{3+} favours formation of covalent bond.

Options

  1. AStatement I is true, Statement II is true, Statement II is a correct explanation for Statement I
  2. BStatement I is true, Statement II is true, Statement II is not a correct explanation for Statement II
  3. CStatement I is true, Statement II is false
  4. DStatement I is false, Statement II is true

Correct answer

A. Statement I is true, Statement II is true, Statement II is a correct explanation for Statement I

Step-by-step solution

Boron always form covalent bond because boron requires very high energy to form B3+\mathrm{B}^{3+} and again B3+\mathrm{B}^{3+} due to its very small size having high polarising power thus cause greater polarisation and eventually significant covalent characteristics-Fajans rule.
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