Question 1 of 17

Chemistry

1. The spontaneous mixing of particles is called:

Evaporation

Boiling

Sublimation

Diffusion

Question 1 of 17

Question 2 of 17

2. What method could be used to obtain copper from mixture of pondered copper and sodium chloride?

Adding excess water to the mixture and filtering

Passing an electric current through the mixture

Fractional distillation of the mixture

Heating the mixture

Question 2 of 17

Question 3 of 17

3. The nature of bond in diamond is

Metallic

Molecular

Covalent

Ionic

Question 3 of 17

Question 4 of 17

4. A bottle of copper oxide has been contaminated with some sodium chloride. How can the NaCl be removed from the copper oxide?

Add aqueous Ag NO₃ to the mixture

Place the mixture in a separating funnel

Heat the mixture and allow it to cool

Add water to the mixture and filter

Question 4 of 17

Question 5 of 17

5. The results of the accurate weighing of some crystals are as follows:
Mass of weighing bottle empty = 25.652 gm
Mass of weighing bottle + crystals = 26.541 gm
What is the mass of the crystals?

1.889 gm

1.111 gm

0.111 gm

0.889 gm

Question 5 of 17

Question 6 of 17

6. NaF and MgO have both atomic ration 1:1 in their crystals such property is

Isotropy

Allotropy

Isomorphism

Polymorphism

Question 6 of 17

Question 7 of 17

7. The temperature at which two or more than two types of crystals exist in equilibrium is called.

Transition temperature

Melting Point

Eutectic temperature

Boiling point

Question 7 of 17

Question 8 of 17

8. Iron acts as an electrical conductor due to

Electron cloud

Free protons

Free ions

Free neutrons

Question 8 of 17

Question 9 of 17

9. Crystal Lattice is an arrangement of particles in

Three dimensions

Two dimensions

One dimension

Four dimensions

Question 9 of 17

Question 10 of 17

10. The solids in which atoms, ions or molecules have random non-repetitive three dimensional arrangements are termed as:

Alloys

Glasses

Amalgams

Crystals

Question 10 of 17

Question 11 of 17

11. Electric current can pass through graphite in one direction but not through other direction of crystal such a property is called

Anisotropy

Isomorphism

Allotropy

Polymorphism

Question 11 of 17

Question 12 of 17

12. Lead and zinc can be separated by distillation because they have different.

Boiling point

Densities

Reactivities

Mass numbers

Question 12 of 17

Question 13 of 17

13. Lattice energy is also called

Bond Energy

Energy of affinity

Crystal energy

Ionization energy

Question 13 of 17

Question 14 of 17

14. When gaseous ions are allowed to form a crystal, energy

Has no effect

Is sometimes absorbed and sometimes released

Is evolved

Is absorbed

Question 14 of 17

Question 15 of 17

15. A crystal of the purple compound Potassium Permanganate placed at the bottom of a beaker of water and the beaker left until there is no further change. What will be observed?

A colourless liquid with the purple crystal unchanged

A colourless layer below a purple layer

A Purple layer below a colourless layer

A uniformly purple solution

Question 15 of 17

Question 16 of 17

16. Which of the following method is most suitable for obtaining a pure, dry sample of NaCl from a mixture of NaCl and sand?

Shake the mixture with water. Filter and dry the substances on the filter paper.

Shake the mixture with water. Filter and evaporate the filtrate.

Shake the mixture with water and distil off the sand

Heat the mixture gently and collect the substances which boil off

Question 16 of 17

Question 17 of 17

17. An insoluble solid was dropped into a measuring cylinder containing 50 cm³ of water. What will be the effect on volume of water?

50 cm³

17 cm³

15 cm³

65 cm³

Question 17 of 17

Test By Subject	Punjab
Test By Topics	11th Class Chemistry

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

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

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

Chemistry

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