15) In which solution, solute is liquid and solvent is gas?
(A) Chloroform mixed with nitrogen gas (B) Ethanol dissolved in water (C) Camphor in nitrogen gas (D) Solution of hydrogen in palladium
16) 1.00 g ofa non electrolyte solute dissolved in 50g of benzene lowered the freczing point of benzene by 0.40 k. The freezing point depression constant of benzene is 5.12 k kg mol". Find the molar mass of the solute.
(A) 280g mol (B) 356 g mol (C) 562 g mol- (D) 256 g mol
18) If 5 gm NaOH is dissolved in 450 ml solution, molarity of| solution is Na -23, O=16, H= 1gmol"']
(A) 27.8 M (B) 0.278 M (C) 2.78 M (D) 278 M
27) Which of the following is example of sol?
(A) Paint (B) Fog (C) Jellies (D) Milk
26) If 22 g benzene is dissolved in 222g carbon tetra chloride. then concentration in W/W is_
(A) 9% (B) 90 % (C)0.9% D) 0.09 %