An arsenious sulphide sol carries a negative charge. The max... | Chemistry | SolveeIt | Solveeit

Today, August 18

Question

An arsenious sulphide sol carries a negative charge. The maximum precipitating power for this sol is possessed by

A

$\ce{K2SO4}$

B

$\ce{CaCl2}$

C

$\ce{Na3PO4}$

D

$\ce{AlCl3}$

Answer

$\ce{AlCl3}$

Explanation

Solution

${As2S3}$ sol. carries a negatively charged, so for coagulation, cations will be the effective ions, coagulation power of an effective ion increases with its charge.