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Find the correct matching
Column-I
(Pair of ions)
Column-II
(Characteristics)

A) $H C O_{3}^{-}, C O_{3}^{2 -}$ P) Both can decolourize $M n O_{4}^{-} / H^{+}$ solution
B) $S^{2 -}, S O_{3}^{2 -}$
Q)
Both can produce white ppt. with $B a C l_{2} (a q)$ solution
C) $S O_{3}^{2 -}, C O_{3}^{2 -}$ R) Both can form soluble complex with small amount of $A g N O_{3}$ solution
D) $S_{2} O_{3}^{2 -}, S O_{3}^{2 -}$ S) Both can produce $M O_{2}$ type gas with dil $H_{2} S O_{4}$ .

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A-S, B-P, C-QS, D-PQRS

A-S, B-PQ, C-S, D-QS

A-S, B-P, C-Q, D-RS

A-S, B-P, C-R, D-Q

answer is A.

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Detailed Solution

$H C O_{3}^{-} \overset{H^{+}}{\to} C O_{2} C O_{3}^{2 -} \overset{H^{+}}{\to} C O_{2} S O_{3}^{2 -} \overset{H^{+}}{\to} S O_{2}$

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