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Chemistry

Page 3

Which of the following substances is not a homogenous mixture?

a.

Filtered sea water

b.

Soft drink

c.

Flood water

d.

Writing ink

Which of the following is found in cotton

a.

Starch

b.

Cellulose

c.

Fat

d.

Oil

The filter in a cigarette reduces the nicotine content by

a.

Burning

b.

Adsorption

c.

Evaporation

d.

Absorption

The nucleus of an atom contains

a.

Protons only

b.

Neutrons only

c.

Protons and electrons

d.

Protons and neutrons

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