Question

Which of the following gives colloidal solution in water
1) Common salt
2) Alum
3) Sand
4) Starch​

Answer 1

Answer:

I think strach is the correct Answer:

Glucose and ionic compounds like NaCl and Ba(NO3)2 form homogeneous solution in water. A colloidal solution is a solution in which the colloid mixes uniformly. All colloids have a Tyndall Effect, which is not exhibited by glucose.

Explanation:

Hope so it help you!!

Have a great day ahead