Solutions Test

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Solutions Test - 40

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Weekly Quiz Competition

Question 1
4 / -1

What will be the ratio of elevation in boiling point of aqueous solution of 1 m sugar, 1 CsCl, and 1 m Na₂SO₄ ? (Assume that ionic solid substances completely dissociates in the solution)

A
3 : 2 : 1

B
1 : 3 : 2

C
1 : 2 : 3

D
3 : 1 : 2
Question 2
4 / -1

At constant temperature, solubility of which of the following substances decreases with increase in temperature ?

A
aqueous solution of sugar

B
aqueous solution of salt

C
aqueous solution of CO₂

D
aqueous solution of KNO₃
Question 3
4 / -1

At constant temperature, in a closed vessel, an ideal solution is formed by liquid – A and liquid – B; and mole-fraction of A and B are 0.6 and 0.4 respectively. If vapour pressure of pure liquids are 125.0 and 62.5 mm respectively, then their mole-fraction in vapour state are respectively – (In vessel, no other component is in gaseous form)

A
0.6 and 0.4

B
0.4 and 0.6

C
0.25 and 0.75

D
0.75 and 0.25
Question 4
4 / -1

At constant temperature, two liquids having osmotic pressure π₁ and π₂ are separated by semipermeable membrane, then, what will be the osmotic pressure of the system ?

A
π₁ + π₂

B
π₁ – π₂

C

D
Question 5
4 / -1

Which of the following pair of solutions forms ideal solution ?

A
Chloro benzene, chloro ethane

B
benzene-toluene

C
acetone-chloroform

D
water, HCL
Question 6
4 / -1

Which of the following pair forms true solutions ?

A
Hexane, heptane

B
chloro benzen, bromo benzen

C
chloro ethane, bromo ethane

D
phenol, aniline
Question 7
4 / -1

What state does point s indicate ?

A
Mole-fraction and partial vapour pressure of both the liquids are same

B
Mole-fraction of the both the liquids are same, but their partial vapour pressures are different

C
Mole-fraction and partial vapour pressures of both the liquids are different

D
Mole-fraction of both the liquids are different, but their partial pressures are same.
Question 8
4 / -1

What would be the elevation in boiling point of 0.1 m NaCl solution ? (Assume that Nacl dissociates completely)

A
kb/10

B
10 kb

C
kb/5

D
k b/20

Solution
Question 9
4 / -1

Which of the following semipermeable membrane is best one ?

A
parchment paper

B
copper frrocyanide

C
butter paper

D
cello phane
Question 10
4 / -1

At constant temperature, binary ideal solution is formed by two liquids A and B. At equilibrium, mole-fraction of liquid A is 0.7 and in vapour state mole-fraction of A is 0.4 P^o_a + P^o_b =90 mm then at the same temperature, what will be the vapour pressure of pure liquid A and B ?

A
40 mm, 50 mm

B
30 mm, 60 mm

C
50 mm, 40 mm

D
20 mm, 70 mm

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Solutions Test - 40

Result

Solutions Test - 40

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Question 1

3 : 2 : 1

1 : 3 : 2

1 : 2 : 3

3 : 1 : 2

Question 2

aqueous solution of sugar

aqueous solution of salt

aqueous solution of CO2

aqueous solution of KNO3

Question 3

0.6 and 0.4

0.4 and 0.6

0.25 and 0.75

0.75 and 0.25

Question 4

π1 + π2

π1 – π2

Question 5

Chloro benzene, chloro ethane

benzene-toluene

acetone-chloroform

water, HCL

Question 6

Hexane, heptane

chloro benzen, bromo benzen

chloro ethane, bromo ethane

phenol, aniline

Question 7

Mole-fraction and partial vapour pressure of both the liquids are same

Mole-fraction of the both the liquids are same, but their partial vapour pressures are different

Mole-fraction and partial vapour pressures of both the liquids are different

Mole-fraction of both the liquids are different, but their partial pressures are same.

Question 8

kb/10

10 kb

kb/5

k b/20

Solution

Question 9

parchment paper

copper frrocyanide

butter paper

cello phane

Question 10

40 mm, 50 mm

30 mm, 60 mm

50 mm, 40 mm

20 mm, 70 mm

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aqueous solution of CO₂

aqueous solution of KNO₃

π₁ + π₂

π₁ – π₂