Which graph represents the elevation in boiling point?

1.
2.
3.
4.	None of the above.

The graph, amongst the following, that represents depression in the freezing point is:

1.
2.
3.
4.	None of the above

Which graph represents the positive deviation of vapor pressure?

1.		2.
3.		4.	None of the above

The law depicted by the provided graph is:

Points A and B in the below-mentioned graph represent, respectively:

The graph representing Henry's law is given below:

The value of the slope will be:

The type of molecular interactions in a solution of alcohol and water is:

A drinking water sample was found to be contaminated with chloroform at a level of 15 ppm (by mass). What is the mass percent of chloroform in the sample?

1. $15\times {10}^{-4}$

2. $1.5\times {10}^{-4}$

3. $0.15\times {10}^{-4}$

4. $15\times {10}^{-5}$

Calculate the molality of an antifreeze solution prepared by dissolving 222.6 g of ethylene glycol (C₂H₆O₂) in 200 g of water.

A solution is obtained by mixing 300 g of 25 % solution and 400 g of 40 % solution by mass. The mass percentage of solute in the resulting solution is:

1. 33.5 %

2. 36.5 %

3. 37.4 %

4. 32.5 %