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In the following sequence in aqueous sol...

In the following sequence in aqueous solution, the species X, Y and Z, respectively, are
`S_(2)O_(3)^(2-) overset(Ag^(+))rarrunderset(("Clear solution"))X overset (Ag^(+))rarr underset(("White ppt."))Y overset("With time")rarr underset(("Black ppt."))Z`

A

`[Ag(S_(2)O_(3))_(2)]^(3-),Ag_(2)S_(2)O_(3),Ag_(2)S`

B

`[Ag(S_(2)O_(3))_(3)]^(5-),Ag_(2)SO_(3),Ag_(2)S`

C

`[Ag(SO_(3))_(2)]^(3-),Ag_(2)S_(2)O_(3),Ag`

D

`[Ag(SO_(3))_(3)]^(3-),Ag_(2)SO_(4),Ag`.

Text Solution

Verified by Experts

The correct Answer is:
A
(a) `Ag^(+)+S_(2)O_(3)^(2-)rarrunderset(darrAg^(+))underset("Clear solution (X)")([Ag(S_(2)O_(3))_(2)]^(3-))`
`underset("Black ppt. (Z)")underset()(Ag_(2)S)overset("CaO")larrunderset("White ppt. (Y)")underset()(Ag_(2)S_(2)O_(3))`
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