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JIPMER 2013
Exam
JIPMER
Year
2013
Subject
Chemistry
Chapter
s Block Elements

JIPMER 2013 · Chemistry · s Block Elements

Among LiCl, BeCl_2, BCl_3 and CCl_4 , the covalent bond character...

Among LiCl,BeCl2,BCl3\mathrm{LiCl}, \mathrm{BeCl}_2, \mathrm{BCl}_3 and CCl4\mathrm{CCl}_4, the covalent bond character follows the order

Options

  1. ALiCl<BeCl2<BCl3<CCl4\mathrm{LiCl} \lt \mathrm{BeCl}_2 \lt \mathrm{BCl}_3 \lt \mathrm{CCl}_4
  2. BBCl3<CCl4<BeCl2<LiCl\mathrm{BCl}_3 \lt \mathrm{CCl}_4 \lt \mathrm{BeCl}_2 \lt \mathrm{LiCl}
  3. CBeCl2<LiCl<CCl4<BCl3\mathrm{BeCl}_2 \lt \mathrm{LiCl} \lt \mathrm{CCl}_4 \lt \mathrm{BCl}_3
  4. DCCl4<BCl2<BeCl2<LiCl\mathrm{CCl}_4 \lt \mathrm{BCl}_2 \lt \mathrm{BeCl}_2 \lt \mathrm{LiCl}

Correct answer

A. LiCl<BeCl2<BCl3<CCl4\mathrm{LiCl} \lt \mathrm{BeCl}_2 \lt \mathrm{BCl}_3 \lt \mathrm{CCl}_4

Step-by-step solution

Covalent character increases with decrease in the value of difference in electronegativites of binding atoms. Thus, the correct order is LiCl<BeCl2<BCl2<CCl4\mathrm{LiCl} \lt \mathrm{BeCl}_2 \lt \mathrm{BCl}_2 \lt \mathrm{CCl}_4
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