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Common Ion Effect

The decreasin...

Question

The decreasing basic order of the following is:
$i . F^{⊖}$ $i i . {C l}^{⊖}$ $i i i . {B r}^{⊖}$ $i v . I^{⊖}$

(i) > (i i) > (i i i) > (i v)

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(i v) > (i i i) > (i i) > (i)

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(i i) > (i) > (i i i) > (i v)

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(i i) > (i) > (i v) > (i i i)

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Solution

The correct option is A $(i) > (i i) > (i i i) > (i v)$
Stronger the acid, weaker is its $C_{B}$ .
Acidic: $H I > H B r > H C l > H F$
Basic: $I^{⊖} < {B r}^{⊖} < {C l}^{⊖} < F^{⊖}$

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