Explain some methods to prevent corrosion.

Important Questions on Metals and Non-metals

MEDIUM

8th CBSE

IMPORTANT

GALAXY SCIENCE IN EVERYDAY LIFE>Chapter 4 - Metals and Non-metals>Chapter Review>Q 9

Differentiate between: Corrosion and rusting 

EASY

8th CBSE

IMPORTANT

GALAXY SCIENCE IN EVERYDAY LIFE>Chapter 4 - Metals and Non-metals>Chapter Review>Q 9

What is the difference between malleability and ductility?

MEDIUM

8th CBSE

IMPORTANT

GALAXY SCIENCE IN EVERYDAY LIFE>Chapter 4 - Metals and Non-metals>HOTS>Q 1

Sodium and phosphorus are both very reactive. Why is sodium stored in kerosene and phosphorus in water?

MEDIUM

8th CBSE

IMPORTANT

GALAXY SCIENCE IN EVERYDAY LIFE>Chapter 4 - Metals and Non-metals>HOTS>Q 2

Why is a country that uses a huge quantity of metals and non-metals considered a prosperous country?

MEDIUM

8th CBSE

IMPORTANT

GALAXY SCIENCE IN EVERYDAY LIFE>Chapter 4 - Metals and Non-metals>HOTS>Q 3

The body of an aeroplane is made up of aluminium. Why is aluminium not used to make the body of cars and buses?

MEDIUM

8th CBSE

IMPORTANT

GALAXY SCIENCE IN EVERYDAY LIFE>Chapter 4 - Metals and Non-metals>HOTS>Q 4

Why are some sweet layered with silver foil?