Which has the weakest ionic bonds among the following?
$1. L i I, 2. N a I, 3. K I, 4. C s I$
(Ex: if answer is $N a I$ , type 2)

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Solution

The smaller the cation, the more polarizing power it has and more the covalent character in the bond. Smallest cation in the given examples is Li and therefore it has maximum covalent character and weakest ionic character.

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L i I, N a I, K I, C s I

Which among the following has the weakest bond?

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N a F, N a C l, N a B r, N a I

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