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

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Question 1 of 17

Chemistry

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

Crystalline solid

Crystal lattice

Mesogens

Liquid crystals

Question 1 of 17

Question 2 of 17

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

Fluorine and Iodine

Fluorine and Chlorine

Iodine and Bromine

Chlorine and Bromine

Question 2 of 17

Question 3 of 17

3. The unit of surface tension is

Newton square per meter

760mm of Hg

Newton per meter square

Newton per meter

Question 3 of 17

Question 4 of 17

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

Dehydrate it with concentrated

Liquids always ill the space available to them

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

1 cm³ of water produces nearly 1700 cm³ of steam

Question 4 of 17

Question 5 of 17

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

Distillation

Freezing

Filtration

Chromatography

Question 5 of 17

Question 6 of 17

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

Lon-dipole forces

Dipole-dipole forces

Dispersion forces

Dipole-induced dipole forces

Question 6 of 17

Question 7 of 17

7. Thermostat is an instrument which

Increases the temperature

Decreases the temperature

Fluctuate the temperature

Maintains the temperature

Question 7 of 17

Question 8 of 17

8. 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 and water have different, boiling points

Chloroform and water do not mix

Chloroform has a higher density than water

Question 8 of 17

Question 9 of 17

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

Water at 10°C

Steam at 100°C

Impure water at 102°C

Water at 100°C

Question 9 of 17

Question 10 of 17

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

Evaporation

Freezing

Condensation

Crystallization

Question 10 of 17

Question 11 of 17

11. 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

Chromatography

Re-crystallization

Filtration

Question 11 of 17

Question 12 of 17

12. The intermolecular forces are of:

Five Types

Four Types

Three Types

Two Types

Question 12 of 17

Question 13 of 17

13. Van Der Wall’s forces are effective.

Both at long as well as short distance

At long distance

Only at short distance

Independent of distance

Question 13 of 17

Question 14 of 17

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

Poisentille

Newton

Vander Wall

Fritz

Question 14 of 17

Question 15 of 17

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

Turbulent flow

Newtonian (or Laminar flow)

None of these

Streamline flow

Question 15 of 17

Question 16 of 17

16. The distillation under reduced pressure is called

Fractional distillation

Vacuum distillation

Pressure distillation

Steam distillation

Question 16 of 17

Question 17 of 17

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

Dehydrate it with concentrated H₂SO₄

Burn it completely in oxygen

Measure its B P

React it with ethanol

Question 17 of 17

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