Consider separate solutions of 0 . 500 M C 2 H 5 OH aq , 0 . 100 M Mg 3 PO 4 2 aq , 0 . 250 M KBr aq and 0 . 125 M Na 3 PO 4 aq at 25 ° C . Which statement is true about these solutions, assuming all salts to be strong electrolytes?

They all have the same osmotic pressure.

0 . 100 M Mg 3 ( PO 4 ) 2 aq has the highest osmotic pressure.

0 . 125 M Na 3 PO 4 aq has the highest osmotic pressure.

0 . 500 M C 2 H 5 OH aq has the highest osmotic pressure.

EASY

JEE Main

IMPORTANT

Earn 100

Two open beakers one containing a solvent and the other containing a mixture of that solvent with a non volatile solute are together sealed in a container. Over time:

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Important Questions on Solutions

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 7th April 2013>Q 25

The molarity of a solution obtained by mixing

750 mL

0.5 (M) HCl

with

250 mL

2 (M) HCl

will be

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 6th April 2014>Q 26

Consider separate solutions of

0.500 M C_{2} H_{5} OH (aq), 0.100 M {Mg}_{3} {({PO}_{4})}_{2} (aq), 0.250 M KBr (aq)

and

0.125 M {Na}_{3} {PO}_{4} (aq)

25 ° C

. Which statement is true about these solutions, assuming all salts to be strong electrolytes?

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 6 September 2020 Shift 2>Q 27

A set of solutions is prepared using

180 g

of water as a solvent and

10 g

of different non-volatile solutes

A, B

and

C

. The relative lowering of vapour pressure in the presence of these solutes are in the order [Given, molar mass of

A = 100 g {mol}^{- 1}; B = 200 g {mol}^{- 1}; C = 10, 000 g {mol}^{- 1}

]

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 6 September 2020 Shift 1>Q 28

A solution of two components containing

n_{1}

moles of the

1^{st}

component and

n_{2}

moles of the

2^{nd}

component is prepared.

M_{1}

and

M_{2}

are the molecular weights of component 1 and 2 respectively. If

d

is the density of the solution in

{gml}^{- 1}, C_{2}

is the molarity and

x_{2}

is the mole fraction of the

2^{nd}

component, then

C_{2}

can be expressed as :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 6 September 2020 Shift 1>Q 29

The elevation of boiling point of

0.10 m

aqueous

{CrCl}_{3} . {xNH}_{3}

solution is two times that of

0.05 m

aqueous

{CaCl}_{2}

solution. The value of

x

\dots \dots \dots \dots . .

[Assume

100 %

ionisation of the complex and

{CaCl}_{2},

coordination number of

Cr

6,

and that all

{NH}_{3}

molecules are present inside the coordination sphere]

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 4th April 2015>Q 30

The vapour pressure of acetone at

20^{o} C

185 torr

. When

1.2 g

of a non-volatile substance was dissolved in

100 g

of acetone at

20^{o} C

, its vapour pressure was

183 torr

. The molar mass

(g m o l^{- 1})

of the substance is:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 4 September 2020 Shift 2>Q 31

The osmotic pressure of a solution of

NaCl

0.10

atm and that of a glucose solution is

0.20

atm. The osmotic pressure of a solution formed by mixing

1 L

of the sodium chloride solution with

2 L

of the glucose solution is

x \times 10^{- 3}

atm.

x

is ________ (nearest integer)

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 4 September 2020 Shift 1>Q 32

300 K

, the vapour pressure of a solution containing

1

mole of

n

-hexane and

3

moles of

n

-heptane is

550 mm

Hg

. At the same temperature, if one more mole of

n

-heptane is added to this solution, the vapour pressure of the solution increases by

10 mm

Hg

. What is the vapour pressure in

mmHg

n

- heptane in its pure state______?

Two open beakers one containing a solvent and the other containing a mixture of that solvent with a non volatile solute are together sealed in a container. Over time:

Important Questions on Solutions

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