Question
Question: A negatively charged suspension of clay in water will need for precipitation the minimum amount of....
A negatively charged suspension of clay in water will need for precipitation the minimum amount of.
A
Aluminium chloride
B
Potassium sulphate
C
Sodium hydroxide
D
Hydrochloric acid
Answer
Aluminium chloride
Explanation
Solution
Sol Negatively charged sols require minimum amount of electrolyte having higher valence of cation.