9th Chemistry Unit 6 States Of Matter MCQs Sindh Board

 9th Grade Chemistry Chapter 6 States Of Matter Sindh Board MCQs Notes Online Chapter Wise Question Answers. Sindh Boards Chemistry Subject Notes For Exams Preparations Karachi, Jamshoro, Sindh Boards. Chemistry class Ninth sindh board notes Unit 6 States Of Matter Most Repeated Multiple Choice Questions With Answers. Chemistry notes for class IX sindh board karachi Boards.

9th Sindh Board Notes

Q.1: The number of common states of matter is:?

1. 4
2. 5
3. 3
4. None of them

C

Q.2: Neither definite shape nor volume is the property of.?

1. Liquid
2. Solid
3. Gas
4. None of them

C

Q.3: The temperature at which the vapour pressure of a liquid becomes equal to its external pressure is called.?

1. Melting point
2. Boiling point
3. Freezing point
4. Triple point

B

Q.4: The state of matter in which molecules are tightly packed and possess only transition motion is.?

1. Liquid state
2. Gaseous state
3. Solid state
4. None of them

C

Q.5: The process in which molecules escape from the surface of liquid is called.?

1. Melting
2. Boiling
3. Sublimation
4. Evaporation

D

Q.6: The process in which solid directly changes to gas is called.?

1. Melting
2. Evaporation
3. Sublimation
4. None of them

C

Q.7: Definite volume but no definite shape is the property of:?

1. liquid
2. solid
3. gas
4. none of them

C

Q.8: Change of state from solid to liquid is called:?

1. condensation
2. vapourization
3. fusion
4. none of them

C

Q.9: The temperature at which solid starts melting is called:?

1. melting point
2. freezing point
3. none of them
4. boiling point

A

Q.10: The molecules neither slip nor slide over one another:?

1. solid
2. none of them
3. liquid
4. gases

A

Q.11: The state of matter which has fixed volume due to intermolecular forces is:?

1. gas
2. solid
3. liquid
4. none of them

C

Q.12: They have a fixed shape and a fixed volume?

1. Liquids
2. Gases
3. Solids
4. None of these

C

Q.13: They have no fixed shape and no fixed volume:?

1. Liquids
2. Solids
3. Gases
4. None of these

C

Q.14: The kinetic energy of molecules increases on:?

1. Cooling
2. Subliming
3. Heating
4. Condensing

C

Q.15: If a solid directly changes from solid to gaseous state, without changing into liquid first, the process is called?

1. Evaporation
2. Condensation
3. Distillation
4. Sublimation

C

Q.16: The temperature at which the vapour pressure of a liquid becomes equal to the external or atmospheric pressure is called its:?

1. Boiling point
2. Cooling point
3. Evaporation point
4. Melting point

A

Q.17: The fast continuous and zigzag movement of suspended particles in a medium is called:?

1. Brownian movement
2. Constant movement
3. Uniform movement
4. Variable movement

A

Q.18: Which molecules have least kinetic energy?

1. Gases
2. Solids
3. Colloids
4. Liquids

B

Q.19: Cohesive forces are weakest among the molecules of:?

1. Colloids
2. Solids
3. Liquids
4. Gases

D

Q.20: On heating evaporation:?

1. Stops
2. Remains the same
3. Increases
4. Decreases

C

Q.21: Which energy increases when solids are heated?

1. Kinetic
2. Tidal
3. Nuclear
4. Potential

A

Q.22: The movement of molecules from a region of higher concentration to lower concentration is called:?

1. Hydrolysis
2. Diffusion
3. Condensation
4. Evaporation

B

Q.23: The process of diffusion is very fast in:?

1. Colloids
2. Liquids
3. Solids
4. Gases

D

Q.24: The number of common states of matter is:?

1. 5
2. 3
3. 4
4. None of them

B

Q.25: Neither definite shape nor volume is the property of:?

1. Liquid
2. Solid
3. Gas
4. None of them

C

Q.26: The process in which molecules escape from the surface of liquid is called:?

1. Evaporation
2. Melting
3. Sublimation
4. None of them

B