Fundamentals of Chemistry: Easy 1

⏱ 15:00

Class 9 · Chemistry · Easy · 8 questions

📖Not sure yet? Read the lesson first: Fundamentals of ChemistryLearn first →

1What is chemistry the study of?

Only living organisms

The composition, structure and properties of matter and the changes it undergoes

Only the stars and planets

Only man-made materials

2Which branch of chemistry mainly deals with compounds of carbon?

Inorganic chemistry

Physical chemistry

Organic chemistry

Nuclear chemistry

3Which branch of chemistry studies the rates, energy changes and mechanisms of chemical reactions?

Biochemistry

Physical chemistry

Organic chemistry

Analytical chemistry

4What is an element?

A substance made of two or more different atoms chemically combined

A pure substance that cannot be broken down into simpler substances by chemical means

Any substance that conducts electricity

A physical blend of two substances

5What is a compound?

A pure substance made of only one type of atom

Two or more elements chemically combined in a fixed ratio

Two or more substances physically mixed in any ratio

A single isolated atom

6Which of these is an example of a mixture rather than a compound?

Table salt (NaCl)

Water (H2O)

Air

Carbon dioxide (CO2)

7What is an atom?

The smallest particle of an element that retains the chemical properties of that element

A group of two or more elements bonded together

The nucleus of a cell

A unit used only to measure mass

8What is a molecule?

A single proton

A group of two or more atoms chemically bonded together

A charged atom

Another name for an element

More on Fundamentals of Chemistry for Class 9