1.

What are correct statements ?

Answer»

Metals SOLS POSSESS '-ve' CHARGE on scattered particle 
`FeCl_3` on dissolving in hot water gives a +ve sol 
Mixing two opposite sols causes coagulation 
Prolonged electrolysis stabilises a sol 

Solution :`FeCl_3` in hot water +ve sol, metal sols are -ve sols
coagulation takes PLACE with MUTUAL coagulation


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