Properties of Gases

Q.

In which state of matter, do the particles have the maximum energy?

1. Solid

2. Liquid

3. Gas

4. None of these

Q.

I weigh nothing, but you can still see me. If you put me in a bucket, I make the bucket lighter. What am I?

1. Fish

2. A hole

3. Rock

4. Air

Q.

The forces of attraction between the molecules in a gas are very strong.

1. weak

2. strong

Q. Gases don't have mass.

1. True

2. False

Q.

Among the following, in which state water molecules have the largest space between them?

1. Water vapour

2. Ice

3. Liquid

4. Plasma

Q.

Gases occupy all the available space because their molecules are

1. strong

2. week

3. very loosely packed

4. tightly packed

Q.

Explain, why effervescence is seen when a bottle of soda water is opened.

Q. An experiment was conducted where vinegar was added to baking soda and a balloon was tied on the neck of the bottle. The balloon inflated because:

1. the reaction released gas
2. the reaction released liquid
3. the reaction released water
4. the reaction released solid

Q. Which of these is a characteristic property of gases?

1. They are rigid.
2. They are not compressible.
3. They have fixed shape.
4. They have neither fixed shape nor fixed volume.

Q.

Which of the following statement is correct about air?

1. It has weight.
2. It cannot be compressed.
3. It has constant volume.
4. It has fixed shape.

Q.

Fill in the blank.

Intermolecular forces of attraction are the __________(strongest/weakest) in gases.

Q.

Matter in all forms, solids, liquids, or gas, _______ on heating.

Q.

Which state of matter is the easiest to compress?

1. Gas

2. Ice

3. Liquid

4. Solid

Q.

Write two properties of:

Gases

Q.

In gases, molecules are ________ packed.

Q. Statement A: Solids have definite shape but no definite volume.
Statement B: Gases have indefinite shape and volume.

1. Statement A is correct and B is incorrect.
2. All statements are correct.
3. All statements are incorrect.
4. Statement A is incorrect and B is correct.

Q. Gas molecules coming out of dry ice move faster than the molecules in the dry ice.

1. Moving faster than dry ice

2. Cannot say

Q.

Gases can fill all the available space.

1. True
2. False

Q. Few cubes of ice are added to a glass of water. Which of the following can be observed in the glass of water after some time?

1. Reduction in volume due to evaporation
2. Increase in volume due to condensation
3. Increase in volume due to melting
4. Decrease in volume due to melting

Q.

Give reason for the following, "A gas can be compressed easily".

Q.

Bakery items are soft and fluffy. Give reason.

Q. Tim lit an incense stick in the corner of a room. The smell soon spread over the entire house. Which property of gases justifies this instance?

1. Gases do not have fixed shape.
2. Gases can flow.
3. Gases do not have fixed volume.
4. Gases can not be compressed.

Q.

What property of hydrogen chloride is demonstrated when it is collected by downward delivery (upward displacement)?

Q.

The molecules of gas in this tank move around quickly because of:

1. Strong force of attraction

2. Gravity

3. Weak force of attraction

4. Large space in tank

Q.

Gases have neither definite volume nor definite shape.

1. True
2. False

Q.

Identify whether the given statement is correct or not.

Gases have negligible intermolecular spaces.

Q.

Why do gases get compressed?

Q.

Gasses do not have definite shape.

1. True
2. False

Q.

___ expand to fill up the space given to them at room temperature.

1. Solids

2. Gases

3. liquid

4. Ice

Q.

Because of the large distance between gas particles, there are very few_________of________between them.