Chemistry Solutions - Online Test

Q1. Greater the value of KH, lower will be the
Answer : Option C
Explaination / Solution:

Pgas= KH× Xgas.Xgas
is measure of solubility of gas.
Q2. Which among the following is soluble in water?
Answer : Option C
Explaination / Solution:

Because of hydrogen bonding.

Q3. Which among the following is soluble in n-octane?
Answer : Option B
Explaination / Solution:

Like dissolves in like

Q4. The use of pressure cooker reduces cooking time because it creates
Answer : Option A
Explaination / Solution:

High pressure increases the boiling point of water so it reduces the cooking time.

Q5. In pressure cooker boiling point of water
Answer : Option A
Explaination / Solution:

As pressure increases boiling point also increase.

Q6. A solute is soluble in two immiscible liquids which are present in a mixture. The concentration of the solute in the upper layer will be
Answer : Option A
Explaination / Solution:

A solute distributes itself between two immisible liquids. Ratio of conc of solute in liquid1 and liquid 2 is constant.

Q7. Camphor is often used in molecular mass determination because
Answer : Option D
Explaination / Solution:

Camphor has very high cryoscopic constant.

Q8. Ethylene glycol is added to water as antifreeze. It will
Answer : Option B
Explaination / Solution:

Fact.

Q9. The molarity of 900 g of water is
Answer : Option A
Explaination / Solution:

M=900/18 as density of water is 1g/ml.

Q10. An aqueous solution of methanol and water has vapour pressure
Answer : Option A
Explaination / Solution:

They show positive deviation.