Question
Which of the following solutions are true solution and which are colloidal : milk, sugar syrup, blood, solution of methanol, smoke, ice cream, paint, soap, NaCl in water.
Answer
True Solution: Solution of methanol, NaCl in water, sugar syrup
Colloidal Solution: Milk, blood, smoke, ice cream, paint, soap
Note: NaCl in water can also form a colloidal solution under certain conditions, but typically it is considered a true solution at low concentrations.