Question
Most effective coagulant for a colloid soln of arsenic sulphide in water is
1) 0.1 M sodium phosphate
2) 0.1M zinc sulphate
3) 0.1 M zinc nitrate
4) 0.1 M aluminium chloride
Plzz annex explanation also
Asked By: SARIKA 19 Day ago
is this question helpfull: 1
Joshi sir comment
its 4th option
because As2S3 is usually a negative colloid and positive ion is responsible for its coagulation and according to Hardy Schulze priciple more positive ion will be more effective