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As(2)S(3) has a negative charge. Capacit...

`As_(2)S_(3)` has a negative charge. Capacity to precipate it is highest in

A

`AlCl_(3)`

B

`Na_(3)PO_(4)`

C

`CaCl_(2)`

D

`K_(2)SO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
A
Negatively charged `As_(2)S_(3)` sol coaulated most effectively by `AlCl_(3)`. This is because oppositely charged `Al^(+++)` ions have maximum charge.
`As^(3+) gt Ca^(2+) gt Na^(+)`.
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