Bureau's Higher Secondary Chemistry Volume-2>Chapter 2 - Solutions>QUESTIONS>Q 1

EASY

12th Odisha Board

IMPORTANT

Earn 100

Define the term solution. How many types of solutions can be formed?

Important Questions on Solutions

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 2 - Solutions>QUESTIONS>Q 2

A solution of glucose (

C_{6} H_{12} O_{6}

) in water is labeled as

10 % w / w

. What would be the molality and mole fraction of each component of the solution?

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 2 - Solutions>QUESTIONS>Q 3

A solution is obtained by mixing

300 g

of

25 %

solution and

400 g

of

40 %

solution by mass. Calculate the mass percentage of the resulting solution.

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 2 - Solutions>QUESTIONS>Q 4

Calculate the amount of benzoic acid ( $C_{6} H_{5} COOH$ ) required for preparing $250 mL$ , of $0.15 M$ solution in methanol.

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 2 - Solutions>QUESTIONS>Q 5

Vapour pressure of water is $12.3 kPa$ at $300 K$ . Calculate vapour pressure of $1$ molal solution of a non-volatile solute in it.

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 2 - Solutions>QUESTIONS>Q 6

A solution of sucrose is prepared by dissolving

68.4 g

in

1000 g

of water. Calculate the vapour pressure of solution at

20 ° C

. The vapour pressure of water of

293 K

is

0.023 atm

. Assume that the solution behaves ideally. (Molar mass of sucrose

= 342 g {mol}^{- 1}

).

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 2 - Solutions>QUESTIONS>Q 7

A solution containing $18 g$ of non-volatile solute in $200 g$ of water freezes at $272.07 K$ . Calculate the molecular mass of the solute in $g / mol$ (Water freezes at $273 K$ and its $K_{f} = 1.86 K kg {mol}^{- 1}$ ).

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 2 - Solutions>QUESTIONS>Q 8

The boiling point of a solution containing

5.0 g

of non-volatile solute in

1 kg

of a solvent at

0.05 °

higher than that of pure solvent. Calculate the molecular mass of the solute (Molecular mass and

K_{b}

for a solvent are

78

and

2.53 K kg / mol

respectively).

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-2>Chapter 2 - Solutions>QUESTIONS>Q 9

A $5 %$ solution of ${CaCl}_{2}$ at $0 ° C$ developed an osmotic pressure of $15$ atmosphere. Calculate the degree of dissociation.

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