541. The osmotic pressure of 1 M solution at 27 degrees Celsius is:
(A) 2.466 atm
B) 24.6 atm
(C) 1.21 atm
(D) 12.1 atm
542. Which substances are mixed to form a buffer solution?
(A) A powerful acid and its salt from a powerful base
(B) Solid corrosive and its salt of feeble base
C) Frail corrosive and its salt areas of strength for of
(D) The weak acid and its weak base salt
543. The halfway strain of a solution part is directly proportional to its mole division. This statement is referred to as:
(A) Henry’s law
B) Raoult’s law
(C) Distribution law
(D) Ostwald’s dilution law
544. The temperature at which a liquid’s vapor pressure equals the pressure outside is:
(A) Melting point
(B) Sublimation point
(C) Inversion point
D) Boiling point
545. The following factors directly correlate with the freezing point depression:
(A) Mole fraction of the solution
(B) Molarity of the solution
C) Molality of the solution
(D) Molarity of the solvent
546. The solubility of a gas in water depends upon:
A) Nature of the gas
(B) Temperature
(C) Pressure of the gas
D) All of the above
547. The following expression is used when the solute is present in trace amounts:
(A) Gram per million
(B) Milligram percent
(C) Microgram percent
D) Parts per million
548. The solvent has a vapor pressure of 0.8 atm and a mole fraction of 0.25 at room temperature. The subsequent decrease in vapor pressure is:
(A) 0.75
(B) 0.60
C) 0.20
(D) 0.80
549. If liquids A and B combine to form a perfect solution:
A) There is no mixing enthalpy
(B) The entropy of mixing is zero
(C) There is no free energy in mixing.
(D) Both the entropy of mixing and the free energy are zero.
550. Alkyl halides can be prepared by the reaction of an alcohol with:
A) A halogen acid
(B) An alkene
(C) A carbonyl compound
(D) A metal
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