MEDIUM
8th CBSE
IMPORTANT
Earn 100

Any rock containing a metallic mineral is called an ore.

50% studentsanswered this correctly

Important Questions on Metals and Non-Metals

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q B
Metal food containers have a coating of _____. (Write the name of the metal).
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q B
The presence of air and _____ are necessary for iron to rust.
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q B
Galvanised iron starts rusting if there is a scratch on the zinc layer?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q B
Copper corrodes in the presence of _____ and water.
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q B

Name a metal that does not corrode in air.

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q C

What do you mean by reactivity series of metals?

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q C
What is the advantage of galvanized iron over tin plated iron?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q C
What is an alloy? How are alloys generally made?