Distillation and Liquation

Q.

This method is used to purify liquids having very high boiling points and those, which decompose at or below their boiling points.

1. Fractional distillation

2. Distillation under high pressure

3. Distillation under reduced pressure

4. None of these

Q.

List two conditions essential for using distillation as a method of separation of the components of a mixture of two liquids

Q.

Fractional distillation is used for separating water and oil.

1. True
2. False

Q.

By which method can you get pure water from tap water?

Q. Two tones of iron ore are containing 94% of Fe2O3 produces iron in pure state . Calculate the weight of iron.

Q.

Describe the technique of separation of a mixture by distillation?

Q.

Fill in the blanks:

Pure liquid from a solution is obtained by _____.

Q. What is the difference between distillation, distillation under reduced pressure and steam distillation ?

Q. what is concentration of ores?

Q.

The process called _______ can be used to separate a mixture of alcohol and water.

Q.

What is the difference between distillation, distillation under reduced pressure and steam distillation ?

Q.

In a weird sequence of amnesiac time-travel events, you are transported to ${16}^{th}$ century Germany where the only practical fuel (or energy source) is firewood. Suppose you are given a piece of Copper which contains silver in small quantities. As luck would have it, you have a good quantity of Lead at your disposal. In this scenario, which one of the following metallurgical methods would you choose to refine the impure copper?

1. Electrolytic refining

2. Fractional vapourization

3. Fractional crystallization

4. Liquation