Characteristics of Particles of Matter

Q.

The space between particles of matter is called ___ space.

1. interparticular

2. intermolecular

3. atomic space

4. molecular space

Q.

When we add water to milk, they get mixed properly because:

1. Particles of milk attract the particle of water

2. Particles of milk repel particle of water.

3. Particles of milk get into the spaces between particles of the water.

4. Particles of milk and water moves in a continuous motion.

Q.

What is matter comprised of?

Q. Digestion of food is a physical change.

1. True
2. False

Q.

What are the basic building blocks of matter?

Q.

Give reason for the following:

Air is considered to be matter even though we cannot see it.

Q.

Addition of Nitric acid to water is a physical change where as addition of calcium oxide to water is considered as chemical change

Q.

Density is the ratio of ____ per unit volume

1. length

2. mass

3. area

4. volume

Q. More the space between the particles of matter; more is the force of attraction between them.

1. False
2. True

Q. A burning candle shows both physical and chemical changes. Explain ?

Q.

The more the space between the particles of the matter, more is the force of attraction between them.

1. False
2. True

Q.

Statement 1: When baking soda is added in lemon juice, then a chemical change occurs.

Statement 2: A change in which new substance is formed, is known as a physical change.

1. Statement 1 is correct and statement 2 is wrong.

2. Statement 1 is wrong and statement 2 is correct.

3. Both the statements 1 and 2 are correct.

4. Both the statements 1 and 2 are wrong.

Q.

Particles of one type of matter always get into spaces between the particles of others.

1. True

2. False

Q.

What does matter mean?

Q.

Air does not occupy space.

1. True
2. False

Q.

Particles of matter have …………………. between them.

Q.

Name the particles which make up matter.

Q. As temperature increases, the rate of diffusion _____.

1. remains same
2. increases and then decreases
3. increases
4. decreases

Q.

Discuss the properties of solids, liquids and gases in terms of:

i. Intermolecular forces

Q. State whether the following statements are true or false. In case a statement is false, write the corrected statement.
a. Cutting a log of wood into pieces is a chemical change.
b. Formation of manure from leaves is a physical change.
c. Iron pipes coated with zinc do not get rusted easily.
d. Iron and rust are the same substances.
e. Condensation of steam is not a chemical change.

Q.

State whether the following statement is true or false.

Particles of matter have space between them.

1. True
2. False

Q.

London forces are important only at_____

Q.

The space devoid of air or any matter is ___ .

Q.

The statue of Liberty changes green every second year due to moist sea breeze. Am i looking at chemical change?

1. Cannot be ascertained as metal of the statue is not specified

2. Chemical change

3. Physical change

Q. Statement 1: Melting of candle wax is a physical change and the melted wax can again be obtained as solid wax upon the removal of heat.

Statement 2: Burning of candle wick is a chemical change and the wick cannot be obtained back in its original form.

Based on the given statements, choose the right option.

1. Both 1 and 2 are correct
2. Statement 1 is correct
3. Statement 2 is correct
4. Both 1 and 2 are incorrect

Q.

Which of these isn't a characteristic of particles of matter?

1. Particles of matter have space between them.

2. Particles of matter are always in random motion.

3. Particles of matter attract each other.

4. Particles of matter are always tightly packed.

Q.

How will you justifies that air occupies a space?

Q. The space between the particles of matter is highest in case of ______.

1. Wood
2. Ice
3. Air
4. Water

Q. Why wind is not considered as a matter though it is the movement of dust particles? Smell of perfume is also movement of particles , then also it is considered as a matter so why not wind?

Q. Statement 1: Melting of candle wax is a physical change and the melted wax can again be obtained as solid wax upon the removal of heat.

Statement 2: Burning of candle wick is a chemical change and the wick cannot be obtained back in its original form.

Based on the given statements, choose the right option.

1. Statement 1 is correct
2. Statement 2 is correct
3. Both 1 and 2 are correct
4. Both 1 and 2 are incorrect