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SCIENCE PRACTICE QUESTIONS

METALS AND NON-METALS

1.

Which of the following non-metals conduct electricity?

A.

Diamond

B.

Graphite

C.

Silicon

D.

Vanadium

2.

Which of the following alloys contain copper?

I. Brass
II. Bronze
III. Duralumin

A.

I and II only

B.

I and III only

C.

II and III only

D.

I, II and III

3.

Aluminium is used for making high tension cables because it is

I. light.
II. highly conducting.
III. brittle.

A.

I and II only

B.

I and III only

C.

II and III only

D.

I, II and III

4.

Which of the following metals is a liquid at room temperature?

A.

Lead

B.

Aluminium

C.

Silver

D.

Mercury

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