MEDIUM
10th Chhattisgarh Board
IMPORTANT
Earn 100

Give reasons for:

Carbonate and sulphide ores are converted into their oxides for extraction of metal.

Important Questions on Metals and Metallurgy

MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 9 - Metals and Metallurgy>Activity>Q 1
From your surroundings, collect samples of some metals, for example - iron, aluminium, copper, zinc. Observe these metals and answer: 
  • Do all metals have lustre?
  • Can all metals be beaten into thin sheets or foils?
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 9 - Metals and Metallurgy>Activity>Q 2
The wires in different electrical appliances of made up of which metal or metals.
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 9 - Metals and Metallurgy>Activity>Q 3
Which metal is used in household wiring?
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 9 - Metals and Metallurgy>Activity>Q 4
Which metal is used to make high tension wires?
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 9 - Metals and Metallurgy>Activity>Q 5
Which metals are used to make cooking utensils and why?
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 9 - Metals and Metallurgy>Exercise>Q 1
Why do metals lose their lustre when left in the open?
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 9 - Metals and Metallurgy>Questions>Q 2
Why are gold and silver are used in making ornaments and jewelry?
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 9 - Metals and Metallurgy>Questions>Q 3
Write the balanced chemical equations of the reactions of lead, magnesium, aluminium metals with oxygen?