Which of the following form of colloid is considered to be the lightest colloid?

Which of the following form of colloid is considered to be the lightest colloid? Correct Answer Gaseous foam

We know that the gaseous foam is the colloidal solution of gaseous molecules and liquid. Thus there exists a lighter bond between the particles. Thus this is considered as the lightest colloid.

Related Questions

Each of the statement consist of two statements I and II. You have to decide whether the data provided in the statement are sufficient to answer the question. Read both the statement and give the appropriate answer. Among five friends S, T, U, V and W who is 3rd heaviest? Statement I: S is the heaviest among all the five friends. Second lightest one having a weight of 58 kg. Statement II: T is the lightest among all the five friends. W is heavier than 58 kg, but lighter than V.