Types of Solution

Q. Homogeneous system among the following is

1. milk
2. sand in water
3. urea in water
4. benzene in water

Q.

You have been assigned a task for your science project. You need to get a solid material which forms a solution with Hydrogen.
Initially you thought it was impossible. How can a gas form a solution with a solid?!
But after watching this video, you know that -

1. hydrogen can form a solution with metals like Palladium.

2. you can solidify a gas like Helium and use that to dissolve Hydrogen.

3. Hydrogen + Oxygen = Water. You will say this proves that hydrogen can't form solutions, since it is reactive.
4. gases can't dissolve.

Q. Which of the following is an example of a solid-solid solution?

1. Plastic
2. Kevlar
3. Stainless steel
4. Gulab Jamun

Q. Which of the following is an example of a solution with a liquid solute and solid solvent?

1. Ethanol in water
2. Mercury - Silver Amalgam
3. Hexane in paraffin wax
4. Honey in honeycomb

Q. The volume of a colloidal particle, $V_c$ as compared to the volume of solute particle in a true solution, $V_S$ could be

1. V _C/V _S = 10²³
2. V _C/V _S = 10³
3. V _C/V _S = 1
4. V _C/V _S = 10^–3

Q. Liquid-liquid sol is known as:

1. Aerosol
2. Foam
3. Gel
4. Emulsion

Q.

How are the colloidal solutions classified on the basis of physical states of the dispersed phase and dispersion medium ?

Q.

QUESTION 2.2

Given an example of a solid solution in which the solute is a gas.

Q. Which of the following is an example of a solid-solid solution?

1. Plastic
2. Kevlar
3. Stainless steel
4. Gulab Jamun

Q. The correct statement among the following is:

1. butter is water dispersed in fat
2. greater is the valency of ion more will be its coagulating power
3. smoke is carbon dispersed in air
4. more is the gold number of a lyophobic sot, more is protecting power