Home Chemistry Chemical Bonding and Molecular Structure Mix Which compound among the following has least…
Chemistry Chemical Bonding and Molecular Structure Mix Single Correct MCQ
Published on: August 12, 2026

Which compound among the following has least ionic character?

A
AlCl 3
B
Al I 3
C
Mg I 2
D
Cs I

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The correct answer is:
B

According to Fajan's rule bigger the anion more will be the polarisability of anion. As a result, there will be more polarisation leading to increased covalent character i.e. lesser ionic character in the compound, Al I 3 .

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