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JEE Main 20188 April
Exam
JEE Main
Year
2018
Date
8 April
Subject
Chemistry
Chapter
Ionic Equilibrium

JEE Main 2018 · 8 April · Chemistry · Ionic Equilibrium

Which of the following are Lewis acids?

Which of the following are Lewis acids?

Options

  1. ABCl3{BCl}_{3} and AlCl3{AlCl}_{3}
  2. BPH3{PH}_{3} and BCl3{BCl}_{3}
  3. CAlCl3{AlCl}_{3} and CCl4{CCl}_{4}
  4. DPH3{PH}_{3} and CCl4{CCl}_{4}

Correct answer

A. BCl3{BCl}_{3} and AlCl3{AlCl}_{3}

Step-by-step solution

Both BCl3andAlCl3{BCl}_{3}and{AlCl}_{3} have vacant p−p -orbital and incomplete octet. So they accept lone pair and act as Lewis acids.
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