Solutions Test

Result

Solutions Test - 9

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

How many grams of 2.0 M CH₃OH would have to be added to water to prepare 150 ml of its solution?

A
6.9g

B
4.3 g

C
9.6 g

D
2.4 g

Solution

Moles = Molarity × Volume = 2.0 × 0.150 L = 0.300
Therefore, Mass of CH₃OH required = Moles × Molar mass = 0.300 mol × 32.0424 g/mol = 9.6 g
Question 2
1 / -0

The volume of water to be added to 100 cm³ of 0.5 N H₂SO₄ to get decinormal concentration is

A
400 cm³

B
450 cm³

C
500 cm³

D
100 cm³

Solution

N₁V₁ = N₂V₂
0.5 × 100 = 0.1 × V₂
V₂ = 500 cm³
∴Water to be added to 100 cm³ solution = 500 - 100 = 400 cm³
Question 3
1 / -0

For a system containing two liquids X and Y, Raoult's law is obeyed when

A
X and Y have similar structures and dipole moments

B
X and Y associate or dissociate in solution

C
X and Y are immiscible

D
X and Y are immiscible and hydrogen bonding occurs between them

Solution

If X and Y have similar structures and dipole moments, they easily mix up with each other without any major interaction between themselves to alter their liquid-vapour equilibrium. So, the mixture will obey Raoult's law.
Question 4
1 / -0

In which of the following cases is Henry's law valid?

A
When pressure is very high

B
When temperature is very low

C
When the gas is not highly soluble

D
When the gas reacts chemically with the solvent

Solution

Henry's law is a relation between pressure and solubility of the gases and can be studied only if the gas is not highly soluble in liquid.
It is not applicable if the pressure is too high or the temperature is too low or if the gas reacts with the solvent because all these conditions make the gas highly soluble in the solvent.
Question 5
1 / -0

Which of the following properties represents a non-ideal solution?

A
The interaction between the components is similar to that in the pure components.

B
There is no enthalpy change on mixing.

C
There is no volume change on mixing.

D
Their components show positive and negative deviations from Raoult's law.

Solution

The components of a non-ideal solution do not follow Raoult's law.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Solutions Test - 9

Result

Solutions Test - 9

Score

-

Rank

-

SHARING IS CARING

Question 1

6.9 g

4.3 g

9.6 g

2.4 g

Solution

Question 2

400 cm3

450 cm3

500 cm3

100 cm3

Solution

Question 3

X and Y have similar structures and dipole moments

X and Y associate or dissociate in solution

X and Y are immiscible

X and Y are immiscible and hydrogen bonding occurs between them

Solution

Question 4

When pressure is very high

When temperature is very low

When the gas is not highly soluble

When the gas reacts chemically with the solvent

Solution

Question 5

The interaction between the components is similar to that in the pure components.

There is no enthalpy change on mixing.

There is no volume change on mixing.

Their components show positive and negative deviations from Raoult's law.

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.

6.9g

400 cm³

450 cm³

500 cm³

100 cm³