Henry's constant (in kbar) for four gases α , β , γ and δ in water at 298 K is given below : α β γ δ K H 50 2 2 × 10 - 5 0 . 5 (density of water = 10 3 k gm - 3 at 298 K ) This table implies that :

The pressure of a 55 . 5 molal solution of δ is 250 bar

α has the highest solubility in water at a given pressure

solubility of γ at 308 K is lower than at 298 K

The pressure of 55 . 5 molal solution of γ is 1 bar .

Henry's constant (in kbar) for four gases α , β , γ and δ in water at 298 K is given below : α β γ δ K H 50 2 2 × 10 - 5 0 . 5 (density of water = 10 3 k gm - 3 at 298 K ) This table implies that :

The pressure of a 55 . 5 molal solution of δ is 250 bar

MEDIUM

JEE Main

IMPORTANT

Earn 100

Henry's constant (in kbar) for four gases $α, β, γ$ and $δ$ in water at $298 K$ is given below :

$\begin{matrix} α & β & γ & δ \\ K_{H} & 50 & 2 & 2 \times 10^{- 5} & 0.5 \end{matrix}$

(density of water $= 10^{3} k {gm}^{- 3}$ at $298 K$ ) This table implies that :

50% studentsanswered this correctly

Important Questions on Solutions

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 2nd April 2017>Q 39

The freezing point of benzene decreases by ${0.45}^{°} C$ on adding $0.2 g$ of acetic acid to $20 g$ of benzene. If acetic acid associates to form a dimer in benzene, then what is the percentage association of acetic acid in benzene?

$(K_{f} for benzene = 5 .12 K kg {mol}^{- 1})$

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 27 July 2021 Shift 2>Q 40

In a solvent

50 %

of an acid HA dimerizes and the rest dissociates. The van't Hoff factor of the acid is _____

\times 10^{- 2}

(Round off to the nearest integer)

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 27 July 2021 Shift 1>Q 41

The density of

NaOH

solution is

1.2 g {cm}^{- 3} .

The molality of this solution is

m

(Round off to the Nearest Integer):
[Use : Atomic masses :

Na : 23.0 u O : 16.0 u

H : 1.0 u

Density of

H_{2} O : 1.0 g {cm}^{- 3}]

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 27 August 2021 Shift 2>Q 42

100 g

of propane is completely reacted with

1000 g

of oxygen. The mole fraction of carbon dioxide in the resulting mixture is

x \times 10^{- 2}

. The value of

x

is (Nearest integer)

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 27 August 2021 Shift 2>Q 43

40 g

of glucose (Molar mass

= 180)

is mixed with

200 mL

of water. The freezing point of solution is

__K

. (Nearest integer)
[Given :

K_{f} = 1.86 K kg {mol}^{- 1};

Density of water

= 1.00 g {cm}^{- 3};

Freezing point of water

= 273.15 K]

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 27 August 2021 Shift 1>Q 44

1 kg

0.75

molal aqueous solution of sucrose can be cooled up to

- 4 ° C

before freezing. The amount of ice (in

g

) that will be separated out is ___________. (Nearest integer) [Given :

K_{f} (H_{2} O) = 1.86 K kg {mol}^{- 1}

]

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 26 Feb 2021 Shift 2>Q 45

When

12.2 g

of benzoic acid is dissolved in

100 g

of water, the freezing point of solution was found to be

- 0.93 ° C (K_{f} (H_{2} O) = 1.86 K kg {mol}^{- 1})

. The number

(n)

of benzoic acid molecules associated (assuming

100 %

association) is _.

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - Solutions>JEE Main - 26 Feb 2021 Shift 1>Q 46

224 mL

{SO}_{2 (g)}

298 K

and

1 atm

is passed through

100 mL

0.1 M NaOH

solution. The non-volatile solute produced is dissolved in

36 g

of water. The lowering of vapour pressure of solution (assuming the solution is dilute) (

P °_{(H_{2} O)} = 24 mm

Hg

) is

x \times 10^{- 2} mm

Hg

the value of

x

is (Integer answer)

Henry's constant (in kbar) for four gases α,β,γ and δ in water at 298 K is given below : αβγδKH5022×10-50.5 (density of water =103 k gm-3 at 298 K ) This table implies that :

Important Questions on Solutions

Learn and Prepare for any exam you want !

Henry's constant (in kbar) for four gases $α, β, γ$ and $δ$ in water at $298 K$ is given below :

$\begin{matrix} α & β & γ & δ \\ K_{H} & 50 & 2 & 2 \times 10^{- 5} & 0.5 \end{matrix}$

(density of water $= 10^{3} k {gm}^{- 3}$ at $298 K$ ) This table implies that :