4 RBTS PAPER(CHEMISTRY)
4 RBTS PAPER

163822 The vapour pressure of a dilute aqueous solution of Glucose is 750 mmHg at 373 K. The mole fraction of solute is:

1 175
2 7675
3 7576
4 176
4 RBTS PAPER

163823 The vapour pressure of pure A is 10 torr. At the same temperature, when 1 g of B is dissolved in 20gm of A, its vapour pressure is reduced to 9.0 torr. If the molecular mass of A is 200amu, then the molecular mass of B is:

1 100amu
2 90amu
3 75amu
4 120amu
4 RBTS PAPER

163824 The boiling point of an aqueous solution of a non volatile solute is 100.15C. What is the freezing point of an aqueous solution obtained by diluting the above solution with an equal volume of water? The values of Kb and Kf for water are 0.512 and 1.86 Kmolality1 :

1 0.544C
2 0.512C
3 0.272C
4 1.86C
4 RBTS PAPER

163821 If P0 and Ps are the vapour pressure of solvent and its solution respectively. N1 and N2 are the mole fraction of solvent and solute respectively then:

1 PS=P0N2
2 P0PS=P0N2
3 PS=P0N2
4 (P0PS)PS=N1(N1+N2)
4 RBTS PAPER

163822 The vapour pressure of a dilute aqueous solution of Glucose is 750 mmHg at 373 K. The mole fraction of solute is:

1 175
2 7675
3 7576
4 176
4 RBTS PAPER

163823 The vapour pressure of pure A is 10 torr. At the same temperature, when 1 g of B is dissolved in 20gm of A, its vapour pressure is reduced to 9.0 torr. If the molecular mass of A is 200amu, then the molecular mass of B is:

1 100amu
2 90amu
3 75amu
4 120amu
4 RBTS PAPER

163824 The boiling point of an aqueous solution of a non volatile solute is 100.15C. What is the freezing point of an aqueous solution obtained by diluting the above solution with an equal volume of water? The values of Kb and Kf for water are 0.512 and 1.86 Kmolality1 :

1 0.544C
2 0.512C
3 0.272C
4 1.86C
4 RBTS PAPER

163821 If P0 and Ps are the vapour pressure of solvent and its solution respectively. N1 and N2 are the mole fraction of solvent and solute respectively then:

1 PS=P0N2
2 P0PS=P0N2
3 PS=P0N2
4 (P0PS)PS=N1(N1+N2)
4 RBTS PAPER

163822 The vapour pressure of a dilute aqueous solution of Glucose is 750 mmHg at 373 K. The mole fraction of solute is:

1 175
2 7675
3 7576
4 176
4 RBTS PAPER

163823 The vapour pressure of pure A is 10 torr. At the same temperature, when 1 g of B is dissolved in 20gm of A, its vapour pressure is reduced to 9.0 torr. If the molecular mass of A is 200amu, then the molecular mass of B is:

1 100amu
2 90amu
3 75amu
4 120amu
4 RBTS PAPER

163824 The boiling point of an aqueous solution of a non volatile solute is 100.15C. What is the freezing point of an aqueous solution obtained by diluting the above solution with an equal volume of water? The values of Kb and Kf for water are 0.512 and 1.86 Kmolality1 :

1 0.544C
2 0.512C
3 0.272C
4 1.86C
4 RBTS PAPER

163821 If P0 and Ps are the vapour pressure of solvent and its solution respectively. N1 and N2 are the mole fraction of solvent and solute respectively then:

1 PS=P0N2
2 P0PS=P0N2
3 PS=P0N2
4 (P0PS)PS=N1(N1+N2)
4 RBTS PAPER

163822 The vapour pressure of a dilute aqueous solution of Glucose is 750 mmHg at 373 K. The mole fraction of solute is:

1 175
2 7675
3 7576
4 176
4 RBTS PAPER

163823 The vapour pressure of pure A is 10 torr. At the same temperature, when 1 g of B is dissolved in 20gm of A, its vapour pressure is reduced to 9.0 torr. If the molecular mass of A is 200amu, then the molecular mass of B is:

1 100amu
2 90amu
3 75amu
4 120amu
4 RBTS PAPER

163824 The boiling point of an aqueous solution of a non volatile solute is 100.15C. What is the freezing point of an aqueous solution obtained by diluting the above solution with an equal volume of water? The values of Kb and Kf for water are 0.512 and 1.86 Kmolality1 :

1 0.544C
2 0.512C
3 0.272C
4 1.86C