EASY
10th CBSE
IMPORTANT
Earn 100

(a)Name an important ore of iron. Write its formula.
(b) How is this ore concentrated?

Important Questions on Metals And Non-Metals

EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 10
Name the chief ore of iron. Write its formula.
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 10
How is iron ore concentrated? Describe it briefly
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 11
Why is it necessary to concentrate an ore before processing? Draw a labelled diagram of Froth Floatation Process' for concentrating an ore. State the principle of this process.
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 12
Describe with labelled diagram, the Froth Floatation Process used to separate the gangue from a sulphide ore.
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 13
Name the process of obtaining a pure metal from an impure metal through electrolysis. Suppose you have to refine copper using this process, then explain with the help of a labelled diagram the process of purification, mentioning in brief the materials used as (i) anode, (ii) cathode and (iii) electrolyte
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 14
During extraction of metals, electrolytic refining is used to obtain pure metals, (a) Which material will be used as the anode and cathode for refining of silver metal by this process? (b) Suggest a suitable electrolyte also, (c) In this electrolytic cell, where do we get pure silver after passing electric current?
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 15
A metal that exists as a liquid at room temperature is obtained by heating its sulphide in the presence of air. Identify the metal and its ore and give the reaction involved. 
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3D>Q 16
Compound X and aluminium are used to join railway tracks, (a) Identify the compound X (b) Name the reaction (c) Write down the reaction.