Chemistry State of Matter (Liquids) Mcqs Test Online 11th Class Punjab

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Question 1 of 17

Chemistry

1. In which of the following are the particles the most disordered?

Water at 10°C

Water at 100°C

Impure water at 102°C

Steam at 100°C

Question 1 of 17

Question 2 of 17

2. The intermolecular forces are of:

Three Types

Four Types

Two Types

Five Types

Question 2 of 17

Question 3 of 17

3. Which of the following two halogens are gases at room temperature.

Fluorine and Chlorine

Iodine and Bromine

Chlorine and Bromine

Fluorine and Iodine

Question 3 of 17

Question 4 of 17

4. Which of the following is the best method of obtaining water from ink?

Filtration

Distillation

Chromatography

Freezing

Question 4 of 17

Question 5 of 17

5. The intermediate phase lying between the solid phase and the normal liquid phase is called

Crystalline solid

Liquid crystals

Mesogens

Crystal lattice

Question 5 of 17

Question 6 of 17

6. The distillation under reduced pressure is called

Pressure distillation

Vacuum distillation

Fractional distillation

Steam distillation

Question 6 of 17

Question 7 of 17

7. The unit of surface tension is

Newton per meter square

Newton square per meter

760mm of Hg

Newton per meter

Question 7 of 17

Question 8 of 17

8. Van Der Wall’s forces are effective.

Only at short distance

Both at long as well as short distance

Independent of distance

At long distance

Question 8 of 17

Question 9 of 17

9. Which of these processes involve a weakening of the attraction between particles?

Condensation

Evaporation

Crystallization

Freezing

Question 9 of 17

Question 10 of 17

10. The flow of the liquid where the velocity of layers is not too large is called:

Newtonian (or Laminar flow)

Turbulent flow

None of these

Streamline flow

Question 10 of 17

Question 11 of 17

11. Which of these statement best supports the idea that matter is made up of particles?

Dehydrate it with concentrated

If a bottle of perfume is opened, the smell spread quickly

1 cm³ of water produces nearly 1700 cm³ of steam

Liquids always ill the space available to them

Question 11 of 17

Question 12 of 17

12. Thermostat is an instrument which

Fluctuate the temperature

Decreases the temperature

Maintains the temperature

Increases the temperature

Question 12 of 17

Question 13 of 17

13. A liquid is thought to be pure ethanoic acid (acetic acid), which of the following is the best way to test its purity?

Burn it completely in oxygen

Measure its B P

React it with ethanol

Dehydrate it with concentrated H₂SO₄

Question 13 of 17

Question 14 of 17

14. Which one of the following forces are also called London forces

Lon-dipole forces

Dipole-dipole forces

Dispersion forces

Dipole-induced dipole forces

Question 14 of 17

Question 15 of 17

15. To help diagnose illness, doctors often need to know which amino acids are present in blood or urine. Which method is common by used to separate and identify amino acids?

Distillation

Filtration

Re-crystallization

Chromatography

Question 15 of 17

Question 16 of 17

16. A flask contains the liquid chloroform and water. They are separating funnel, which conclusion can be form this observation alone.

Chloroform and water have different relative molecular masses

Chloroform has a higher density than water

Chloroform and water have different, boiling points

Chloroform and water do not mix

Question 16 of 17

Question 17 of 17

17. The scientist who discussed the phenomenon of viscosity are.

Newton

Fritz

Poisentille

Vander Wall

Question 17 of 17

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