Q. The critical value of zeta potential (in milli volts) for a stable colloid (except gold sol) is: (Solved)
1. from 20 to 50
2. from 50 to 100
3. less than 20
4. mor than 100
- a. from 20 to 50
1. from 20 to 50
2. from 50 to 100
3. less than 20
4. mor than 100