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For coagulating As(2)S(3) colloidal sol,...

For coagulating `As_(2)S_(3)` colloidal sol, which of the following will have the lowest coagulation value

A

`NaCl`

B

`KCl`

C

`BeCl_(2)`

D

`AlCl_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
`As_(2)S_(3)` is a nagative sol hence, `AlCl_(3)` with untrialent `Al^(3+)` has least coagulation value.
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