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AgNO(3) solution produces white ppt. wi...

`AgNO_(3)` solution produces white ppt. with a solution (A) which turns dark on standing due to hydrolytic decomposition. The solution (A) might contain.

A

`S_(2)O_(3)^(2-)`

B

`SO_(4)^(2-)`

C

`S_(4)O_(6)^(2-)`

D

`SO_(3)^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`S_(2)O_(3)^(-2)+AgNO_(3)rarrunderset("white")(Ag_(2)S_(2)O_(3))rarrunderset("Balck")(Ag_(2)S)`
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