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Salt of Weak Acid and Weak Base

CO32- ions in...

Question

$C O_{3}^{2 -}$ ions in a solution treated with dilute $H C l$ in indicated by :

orange/yellow precipitate

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effervescence turning lime water milky

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lilac

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both

A

and

B

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Solution

The correct option is B effervescence turning lime water milky
$C O_{3}^{2 -}$ belongs to group 1 anions. On treating with dilute HCl, brisk effervescence with release of gas which turns lime water milky indicates the presence of $C O_{3}^{2 -}$ in the solution.

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