CBSE Class 8 Science Materials: Metals and Non-Metals Quiz 3

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1. The best electrical conductor is

A gold B copper C silver D aluminium

2. Iron is galvanised by coating it with

A chromium B sodium C magnesium D zinc

3. Out of these, which one is more reactive with water?

A Sodium B Magnesium C Iron D Copper

4. Boron is

A metal B metalloid C non-metal D alkali

5. A mineral from which. a metal can be extracted on the commercial scale, economically is called

A ore B metalloid

Practice more on Materials: Metals and Non-Metals