Question

Four substances were thoroughly mixed with water separately to obtain mixtures A, B, C and D. Some of their properties are given below: (I) Path of a beam of light passing through it was visible in A, B and D but invisible in C. (II) On leaving undisturbed, the particles of the substance settle down in A but not in B, C and D. (III) The solute particles are visible to naked eye in a but invisible in B, C and D. Which of the following is correct about A, B, C and D? (1) A, B and D are colloids, C is a solution. (2) A is a suspension, B and D are colloids, C is a solution. (3) A is a colloid. B, C and D are solutions. (4) A is a suspension. B, C and D are colloids

Answer 1

Hola mate

Here is your answer -

A is suspension, B and D are colloids and C is a solution.

Hope it helps you!

Answer 2

The following statement is correct

A is a suspension, B and D are colloids and C is a solution.(option - 2)

• The path of light is invisible in a solution therefore C is a solution.
• The path of light is visible due to scattering due to the presence of particles hence can be observed in the case of colloids and suspension.
• Particles settle down in case of suspension therefore A is a suspension as they are denser than that of colloids.
• Hence B and D show the characteristics of colloids.