EASY
10th CBSE
IMPORTANT
Earn 100

An ore on heating in air produces sulphur dioxide. What process would you suggest for its concentration. Describe briefly any two steps involved in the conversion of this concentrated ore into the related metal.

Important Questions on Metals And Non-Metals

EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 3
Give reason for the following:
Metals conduct electricity.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 3
Give reason for the following:
Metals generally do not form compounds with hydrogen.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 3
Give reason for the following:
A piece of zinc placed in blue copper sulphate solution decolorizes it.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 3
Give reason for the following:
Alumina is dissolved in molten cryolite for electrolysis to obtain aluminium metal.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 3
Give reason for the following:
Nitrogen gas is used to preserve food.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 4
Define the terms, mineral, ore and gangue as used in metallurgical operations.
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 4
Describe with a labelled diagram, the method of concentration of a sulphide ore.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 4
Differentiate between roasting and calcination.