Multiple choice

Which of the following electrolytes is the most effective coagulating agent for Sb2S3?

  1. Al2(SO4)3

  2. Si(NO3)4

  3. BaCl2

  4. CaSO4

  5. MgCl2

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Since, Sb2S3 is an anionic sol. According to Hardy Schulze rule, greater the valency of cationic coagulating agent, greater its coagulating power. Therefore, Si(NO3)4 has most valency (+4), and hence it will be the most effective coagulation agent in the present case.