The type of molecular interactions in a solution of alcohol and water is:
1. | Electrostatic interaction | 2. | London dispersion forces |
3. | Hydrogen bonding | 4. | Ion-dipole interaction |
The graph representing Henry's law is given below:
The value of the slope will be
1. | \(4\times10^{-4}~\mathrm{torr}\) | 2. | \(5\times10^{-4}~\mathrm{torr}\) |
3. | \(4\times10^{4}~\mathrm{torr}\) | 4. | \(5\times10^{4}~\mathrm{torr}\) |
Points A and B in the below-mentioned graph represent, respectively:
1. | Partial pressures of first and second components |
2. | Vapour pressures of the pure second and first components |
3. | Partial pressures of second and first components |
4. | Vapour pressures of the pure first and second components |
The law represented by given graph is -
1. | Henry's law | 2. | Raoult's law |
3. | Boyle's law | 4. | Charle's law |
The graph, amongst the following, representing positive deviation of vapour pressure is-
1. | 2. | ||
3. | 4. | None of the above |
The correct graph amongst the following, that represents the elevation in boiling point is:
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 |
A sample of drinking water was contaminated with chloroform. The level of contamination was 15 ppm (by mass). The mass percent of chloroform is:
1.
2.
3.
4.
An antifreeze solution is prepared from 222.6 g of ethylene glycol (C2H6O2) and 200 g of water. The molality of the solution would be:
1. | 6.9 m | 2. | 17.9 m |
3. | 29.9 m | 4. | 21.9 m |
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 %