NS ELEC_Q1

Which of the following are examples of Chemical Change:

I. Freezing of water

II. Rusting of Iron

III. Burning of paper

IV. Cutting of woods

• II only

• II and III

• I and IV

• III only

A branch of chemistry that deals on the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds.

• Organic chemistry

• Inorganic chemistry

• Analytical Chemistry

• Biochemistry

A branch of chemistry that explores the chemical processes within and related to living organisms.

• Organic chemistry

• Inorganic chemistry

• Analytical Chemistry

• Biochemistry

These are the building blocks of matter

• Atoms

• Elements

• Compound

• Molecules

A solid is a state of matter that has a(n)

• indefinite volume and an indefinite shape.

• definite volume and a definite shape.

• definite volume and an indefinite shape.

• indefinite volume and a definite shape.

In which state of matter are particles packed tightly together in fixed positions?

• Gas

• Solid

• Liquid

• Compound

Which one of the following is not a property of a gas?

• Loose particles

• Can be compressed

• No definite shape

• Definite volume

Which state of matter has a definite shape, a definite volume and cannot flow?

• Solid

• Solids and gases

• Liquid

• Gas

Which one of the following is not a property of solids?

• No definite shape

• They do not flow

• Definite volume

• They are incompressible

The term "fluid" may describe more than one state of matter. Which one of the following may describe a fluid?

• Solid and liquid and gas

• Solid and gas

• Gas and liquid

• Liquid and solid