Punjab 11th Class Chemistry Chapter 4 Liquids and Solids MCQs Test Online

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Question 1 of 10

Chemistry

1. Diamond is a bad conductor because

1. None of the above

2. It has high density

3. It has tight structure

4. There is no free electron present in the crystal of diamond to conduct electricity

Question 1 of 10

Question 2 of 10

2. When water freezes at 0°C, its density decreases due to

1. Cubic structure of ice

2. Change of bond lengths

3. Empty spaces present in the structure of ice

4. Change of bond angles

Question 2 of 10

Question 3 of 10

3. London dispersion forces are present among.

1. Molecules of water in liquid state

2. Atoms of helium in gaseous state at high temperature

3. Molecules of hydrogen chloride gas

4. Molecules of solid iodine

Question 3 of 10

Question 4 of 10

4. Which of the following is a pseudo solid

1.All

2. NaCl

3.Glass

4.Sand

Question 4 of 10

Question 5 of 10

5. Acetone and chloroform are soluble in each other due to

1. Dipole-dipole interaction

2. Instantaneous dipoles

3. All of the above

4.Intermolecular hydrogen bonding

Question 5 of 10

Question 6 of 10

6. Ionic solids are characterized by

1. Solubility in polar solvents

2. Low melting point

3. High Vapour pressure

4. Good Conductivity in solid state

Question 6 of 10

Question 7 of 10

7. NH₃ shows maximum boiling point among the hydrides of Vth group element due to

1. Lone Pair present on the nitrogen

2. Pyramidal structure of NH3

3. Very small size of nitrogen

4. Enhanced electronegative character of nitrogen

Question 7 of 10

Question 8 of 10

8. Amorphous solids

1. Can possesses small regions of orderly arrangement of atoms

2. Undergo clean cleavage when cut with knife

3. Have perfect arrangement of atoms

4. Have sharp melting point

Question 8 of 10

Question 9 of 10

9. In order to raise the boiling point of water to 110° C, the external pressure should be

1. 765 torr

2.between 760 torr and 1200 torr

3. any value of pressure

4. between 200 torr and 760 torr

Question 9 of 10

Question 10 of 10

10. The molecules of in dry Ice from the

1. molecular crystals

2. any type of crystal

3. covalent crystals

4.ionic crystals

Question 10 of 10

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