Matter and Its Composition Test

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Matter and Its Composition Test - 7

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following changes is not correctly represented during the process of changing from solid state to liquid state?

A
The heat energy supplied to the solid is absorbed by its molecules.

B
The initial potential energy increases the intermolecular space.

C
The force of attraction between the particles increases.

D
The molecules become comparatively free.
Question 2
1 / -0

Which of the following statements is not correct about vaporisation according to kinetic molecular theory?

A
The heat energy supplied to a liquid is absorbed by its molecules.

B
The intermolecular space decreases in this process.

C
The force of attraction decreases drastically.

D
The molecules with almost negligible intermolecular force become completely free.
Question 3
1 / -0

During which of the following processes do molecules come very close and hence, are not free to migrate?

A
Melting

B
Liquefaction

C
Sublimation

D
Vaporisation
Question 4
1 / -0

Which of the following is not a characteristic of matter according to kinetic molecular theory?

A
Matter in any state is composed of small particles, which may be molecules, atoms or ions.

B
Particles are arranged in such a way that there are no spaces between the particles.

C
Particles are in continuous random motion.

D
Molecules of a given substance are identical in all respects.
Question 5
1 / -0

Which of the following statements is not correct about atom according to the discoveries made in the beginning of the nineteenth centaury?

A
All atoms are indivisible and indestructible.

B
The atom is electrically neutral.

C
The molecules in the substance are in a state of random motion.

D
The matter has the particle nature.
Question 6
1 / -0

Which of the following statements is true about kinetic model of liquid?

A
The average distance between the liquid molecules is smaller than in the solid.

B
The molecules of a liquid on an average have a lesser speed than the molecules of a solid.

C
The force of attraction between the liquid molecules is not strong enough.

D
There is no motion between the molecules of liquid.
Question 7
1 / -0

During which of the following processes does force of attraction between the particles decrease?

A
Conversion of ice into water

B
Conversion of water vapours into liquid water

C
Conversion of ammonia from gas to liquid

D
Conversions bromine liquid to solid bromine
Question 8
1 / -0

Which of the following substances has/have different properties in its different parts?

A
Water

B
Hydrogen

C
Soil and rocks

D
Solution of sugar and water
Question 9
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Which of the following properties of matter can neither be felt by senses nor measured?

A
Magneitc properties

B
Melting and boiling point

C
Solubility

D
Thermal stability
Question 10
1 / -0

According to kinetic molecular theory, on which of the following factors does force of attraction depend?

A
Density of particles

B
Size of particles

C
Intermolecular space

D
Random motion
Question 11
1 / -0

Which of the following processes will result in decrease in the intermolecular space?

A
Melting

B
Sublimation

C
Boiling

D
Liquefaction
Question 12
1 / -0

Which of the following statements is not correct about boiling on the basis of the kinetic theory?

A
The average kinetic energy of the liquid molecules decreases.

B
The molecules start leaving the surface.

C
The bubbles grow in size and move to the surface.

D
When boiling starts, the temperature of the liquid does not increase.

E
The average kinetic energy of the liquid molecules increases.
Question 13
1 / -0

Which of the following statements is not correct about the process shown above?

A
The above process takes place in the presence of heat only for all other substance.

B
The solid used in the process has very little force of attraction between their molecules.

C
On heating the inter-molecular force of attraction is overcome.

D
None of these.
Question 14
1 / -0

Which of the following statements is not correct about freezing on the basis of kinetic theory?

A
The stored potential energy is released as heat energy.

B
The intermolecular distance decreases.

C
The force of attraction between the particles increases.

D
The molecules are free to move position.
Question 15
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Which of the given statements is correct about the process shown in the figure?

A
It is a slow process.

B
It takes place at the surface of liquid.

C
It takes place at definite temperature.

D
It is bulk process.

E
None of these

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Matter and Its Composition Test - 7

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Matter and Its Composition Test - 7

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Question 1

The heat energy supplied to the solid is absorbed by its molecules.

The initial potential energy increases the intermolecular space.

The force of attraction between the particles increases.

The molecules become comparatively free.

Question 2

The heat energy supplied to a liquid is absorbed by its molecules.

The intermolecular space decreases in this process.

The force of attraction decreases drastically.

The molecules with almost negligible intermolecular force become completely free.

Question 3

Melting

Liquefaction

Sublimation

Vaporisation

Question 4

Matter in any state is composed of small particles, which may be molecules, atoms or ions.

Particles are arranged in such a way that there are no spaces between the particles.

Particles are in continuous random motion.

Molecules of a given substance are identical in all respects.

Question 5

All atoms are indivisible and indestructible.

The atom is electrically neutral.

The molecules in the substance are in a state of random motion.

The matter has the particle nature.

Question 6

The average distance between the liquid molecules is smaller than in the solid.

The molecules of a liquid on an average have a lesser speed than the molecules of a solid.

The force of attraction between the liquid molecules is not strong enough.

There is no motion between the molecules of liquid.

Question 7

Conversion of ice into water

Conversion of water vapours into liquid water

Conversion of ammonia from gas to liquid

Conversions bromine liquid to solid bromine

Question 8

Water

Hydrogen

Soil and rocks

Solution of sugar and water

Question 9

Magneitc properties

Melting and boiling point

Solubility

Thermal stability

Question 10

Density of particles

Size of particles

Intermolecular space

Random motion

Question 11

Melting

Sublimation

Boiling

Liquefaction

Question 12

The average kinetic energy of the liquid molecules decreases.

The molecules start leaving the surface.

The bubbles grow in size and move to the surface.

When boiling starts, the temperature of the liquid does not increase.

The average kinetic energy of the liquid molecules increases.

Question 13

The above process takes place in the presence of heat only for all other substance.

The solid used in the process has very little force of attraction between their molecules.

On heating the inter-molecular force of attraction is overcome.

None of these.

Question 14

The stored potential energy is released as heat energy.

The intermolecular distance decreases.

The force of attraction between the particles increases.

The molecules are free to move position.

Question 15