Question

The most suitable electrolyte for coagulation of arsenic sulphide will be

Answer 1

As2S3 sol is negatively charged sol hence it can be coagulated by a positively charged electrolyte like AlCl3.

Answer 2

Hey dear,
You missed some information.

● Complete question with options -
Q. Which of the following electrolytes would be most effective in coagulation of arsenic sulphide?
(i) MgSO4
(ii) AlCl3
(iii) NaCl
(iv) BaCl2

● Answer -
AlCl3

● Explaination -
- As arsenic sulphide is negatively charged, it is easily coagulated by positively charged electrolyte
- From the given options as AlCl3 has +3 charge, it's more suitable for coagulation.

Hope this helps...