Which one of the following is not a solution?

Which among the following is NOT true with respect to colloidal solution?

In which of the following colloids is the dispersing medium a liquid ?

Which of the following substances will show Tyndall effect?

If an unsaturated sugar solution is prepared by mixing 100 grams of sugar with half litre of water, which of the following physical quantities will not change?

The amount of solute present per unit volume or per unit mass of the solution/solvent is known as _____ in Chemistry.