221. Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be _______________ atmosphere?
222. With increase in the solute concentration, the specific heat of aqueous solutions _____________________?
C. Remains unchanged
D. Either A. or B.; depends on the type of solution
223. In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest ?
A. 30 c.c acid and 30 c.c base
B. 20 c.c acid and 25 c.c base
C. 15 c.c acid and 35 c.c base
D. 35 c.c acid and 15 c.c base
224. Which of the following terms of Vander Walls equation of state for a non-ideal gas accounts for intermolecular forces ?
B. P + (a/V2)
C. (V – b)
225. At higher temperatures, molal heat capacities for most of the gases (at constant pressure) _______________ with increase in temperature?
A. Varies linearly
D. Does not vary
226. The depression in freezing point of a solution is________________?
A. Inversely proportional to the mass of solvent
B. Directly proportional to the mole of solute
C. Both A. and B.
D. Neither A. nor B.
227. Normality of a solution does not change with the increase in the __________________?
C. Solute concentration
D. Dilution of the solution
228. Which of the following has the smallest least effect on the solubility of a solute into the solvent ?
A. Nature of the solute
B. Nature of the solvent
229. What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20) ?
230. How much O2 can be obtained from 90 kg of water ?
A. 32 kg
B. 80 kg
C. 64 kg
D. 90 kg