Physical Nature of Matter

Q.

The smallest unit which has an independent existence and exhibits all the properties of the substance is called a __________.

Q.

Which of the following is not an element?

1. Hydrogen

2. Water

3. Oxygen

4. Nitrogen

Q. Molecule which follows octet rule 1. ClO2 2.NO 3.NO2 4.N2O3

Q.

A molecule has an independent existence.

1. True

2. False

Q.

What is the relation between mass (m) and weight?

Q.

All matter is made of very tiny particles called?

Q.

What is difference between mass and weight?

Q.

___________is the smallest particle of a substance, which can exist independently.

Q.

A molecule is the smallest particle of matter.

1. True
2. False

Q.

The smallest unit of an element that may or may not have an independent existence but always takes part in a chemical reaction is _________ .

Q. Which among the following statement is true for matter?

1. It is weightless.
2. It has no mass.
3. It occupies space.
4. It has no fixed shape.

Q.

The standard unit of force is ___.

Q.

The smallest unit of matter is:

1. A molecule

2. A compound

3. An element

4. An atom

Q.

Define the following terms (with examples):

Atom

Q. The fundamental unit of matter ​is called _______.

1. cell
2. atom
3. molecule
4. block

Q.

An atom is the smallest particle capable of independent existence.

1. True
2. False

Q.

When matter is divided into smaller and smaller particles, ultimately a stage is reached where the particles cannot be divided further into smaller particles. These tiny particles are called ___.

Q.

Why love, hatred, and suspicion are not considered as matter?

Q.

Smallest unit of matter that contain all its properties.

Q.

Is matter continous or particulate?

1. Continuous

2. Particulate

3. Continuous and particulate.

4. Partially continuous and partially particulate.

Q.

how is mass different from weight?

Q.

Usually, atoms combine together to form a ___

Q.

All matter is composed of small particles called _______.

Q.

Define the following:

Atom

Q.

B. (i) Matter is made of basic building blocks, commonly called elements.

1. True
2. False

Q.

According to democritus - "When matter is divided into smaller and smaller particles, ultimately a stage is reached when the particles cannot divide further into smaller particles. These tiny particles are called ___."

Q.

Which of these molecules are triatomic?

1. Hydrogen

2. Nitrogen

3. Oxygen

4. Water

Q.

An atom doesn’t have to exhibit all the properties of the matter that it makes up.

1. True

2. False

Q.

An_________ is the smallest particle of an element that retains the properties of the element.

Q.

Which is the smallest possible unit of matter?

1. Atom

2. Molecule

3. None of these