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JEE Main 201511 AprilOnline
Exam
JEE Main
Year
2015
Date
11 April
Mode
Online
Subject
Chemistry
Chapter
s Block Elements

JEE Main 2015 · 11 April · Online · Chemistry · s Block Elements

Which of the alkaline earth metal halides given below is...

Which of the alkaline earth metal halides given below is essentially covalent in nature?

Options

  1. ABeCl2BeC{l}_{2}
  2. BMgCl2MgC{l}_{2}
  3. CSrCl2SrC{l}_{2}
  4. DCaCl2CaC{l}_{2}

Correct answer

A. BeCl2BeC{l}_{2}

Step-by-step solution

Be2+B{e}^{2 +} cation is very small in size and in terms of Fajan's rules brings about polarization of electronic cloud of anion (Cl−)( C{l}^{-} ) i.e. BeCl2BeC{l}_{2} is covalent in nature.
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