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Q.

According to Hannay-Smith formula, if $E.N$ difference between A and B is 2.1, then, A-B molecule is expected to have x % ionic character, find $\frac{x}{10}$ value to the next integer.

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answer is 5.

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Detailed Solution

$\frac{16 \times 2.1 + 3.5 \times (2.1)^{2}}{10} = \frac{x}{10} ≃ 5$

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