241. A solution contains 1.2046 *10(24) hydrochloride acid molecules in one dm3 of the solution. The strength of the solution is:
A. 6 N
B. 2 N
C. 4 N
D. 8 N
242. Camphor is often used in molecular mass determination because:
A. It is a solvent for organic substances
B. It is readily available
C. It has a cryoscopic constant that is very high
D. It is volatile
243. The weight of pure NaOH required to prepare 250 Cm3 of 0.1 N solution is:
A. 4 G
B. 1 G
C. 2 G
D. 5 G
244. The fume strain of two fluids ‘p’ and ‘Q’ are 80 and 60 torr separately. The all-out fume strain of the arrangement acquired by Blending 3 mole of P and 2 mol of Q would be:
A. 140 torr
B. 20 torr
C. 68 torr
D. 72 torr
245. 0.5 M of H2SO4 is diluted from 1 litre to 10 litres, normality of the resulting solution is:
A. 1 N
B. 0.1 N
C. 10 N
D. 11 N
246. The vant Hoff factor (i) accounts for:
A. Degree of solubilisation of solute
B. The extent of dissolution of solute
C. The Degree of separation of solute
D. The degree of decomposition of the solution
247. The osmotic pressure of a dilute solution is directly proportional to the:
A. Diffusion rate of solute
B. Ionic concentration
C. Elevation in boiling point
D. Flow of solvent from a concentrated to a dilute solution
248. In biological systems, what is the function of enzymes?
(A) Catalyze Biochemical action
(B) Chemical action
(C) Chemical process
D) None of the above
249. Enzymes have _ units.
(A) Carbon
B) Polypeptide
(C) Hydrocarbon
(D) None of the above
250. The helical structure of proteins is stabilized by which bond?
(A) Ionic
B) Hydrogen
(C) Covalent
(D) None of the above
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