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Question

The compound having least covalent nature is:

A
AlCl3
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B
MgCl2
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C
NaCl
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D
KCl
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Solution

The correct option is D KCl
The anion Chlorine is common in all molecules. Smaller the size of cation and greater the charge, more is the covalent character. NaCl and KCl have lesser charge, and among these, potassium ions have a greater size than sodium ions. Thus, KCl is least covalent.

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