MEDIUM
8th CBSE
IMPORTANT
Earn 100

Which of the following elements would form acidic oxides?

(a) carbon (b) magnesium (c) sulphur (d) zinc (e) iron

Important Questions on Materials: Metals and Non-Metals

HARD
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 4 - Materials: Metals and Non-Metals>Exercise>Q 1
State any five physical properties on the basis of which metals can be distinguished from non-metals.
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 4 - Materials: Metals and Non-Metals>Exercise>Q 2
Wires cannot be drawn from materials such as stone or wood. Why?
EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 4 - Materials: Metals and Non-Metals>Exercise>Q 2

Give reason for the following:

Oxygen is not brittle.

MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 4 - Materials: Metals and Non-Metals>Exercise>Q 2

Give reason for the following:

Sulphur cannot be used for making pipes. 

EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 4 - Materials: Metals and Non-Metals>Exercise>Q 2

Give reason for the following:

Diamonds are used for making jewellery.

MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 4 - Materials: Metals and Non-Metals>Exercise>Q 2
Give reason for the following:
Sodium metal is stored under kerosene oil.
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 4 - Materials: Metals and Non-Metals>Exercise>Q 3
State any three physical and two chemical properties that prove that copper is a metal.
MEDIUM
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 4 - Materials: Metals and Non-Metals>Exercise>Q 1
Can you store lemon pickle in an aluminium utensil ? Give reason for your answer.