wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Purification Technique

Total questions: 9

Worksheet time: 5mins

Name
Class
Date
1.

What is the primary output of the distillation process?

a)

Wastewater

b)

Gas emissions

c)

Volatile distillate

d)

Solid residue

2.

Which of the following is a method of water purification that uses ion exchange resin?

a)

Distillation

b)

Deionization

c)

Desalination

d)

Reverse osmosis

3.

In continuous distillation, what is maintained at a steady state?

a)

Temperature only

b)

Only the reflux ratio

c)

Pressure only

d)

Feed input rate and output stream rates

4.

What does reverse osmosis require to function effectively?

a)

Low temperature

b)

Gravity

c)

High pressure

d)

Low salinity

5.

Which of the following components is NOT typically removed during demineralization?

a)

Water

b)

Anions

c)

Impurities

d)

Cations

6.

What is the role of the reboiler in the distillation process?

a)

To cool the vapors

b)

To heat the liquid at the bottom

c)

To condense the distillate

d)

To remove impurities

7.

How does reverse osmosis differ from natural osmosis?

a)

It requires energy

b)

It occurs without a membrane

c)

It moves water from high to low concentration

d)

It does not filter impurities

8.

What is the purpose of the rectifying section in a distillation column?

a)

To heat the mixture

b)

To condense the vapors

c)

To enrich the lighter components

d)

To remove the least volatile components

9.

Which process is used to remove mineral salts from seawater?

a)

Desalination

b)

Deionization

c)

Demineralization

d)

Distillation