Some Important Metals and their Properties
Some Important Metals and their Properties: Overview
This Topic covers sub-topics such as Gold, Iron, Aluminium, Copper, Aluminium Oxide, Uses of Copper, Uses of Aluminium, Uses of Iron, Compounds of Silver, Application of Gold, Reaction of Silver with H2S and, Reaction of Silver with Hot Conc. HNO3
Important Questions on Some Important Metals and their Properties
Match the following columns and choose the correct options from the codes given below
| Column -I | Column-II | ||
| A | A poisonous gas | 1 | Phosgene |
| B | Abrasive | 2 | White lead |
| C | An ore of tin | 3 | Casseterite |
| D | A white pigment | 4 | Diamond |
List some uses of aluminium in our everyday life.
What are the uses of aluminium?
Dilute nitric acid on reaction with silver liberates gas.
Dilute nitric acid on reaction with silver liberates:
Silver metal reacts with hot concentrated nitric acid and produce silver nitrate salt, nitrogen dioxide gas and water as products.
What happens when silver reacts with Hot Conc. .
In the reaction , sulphuric acid acts as an acid as well as an oxidant.
In the reaction , sulphuric acid acts as :
The black coating in silver is due to the formation of silver sulphide.
Why is there a black coating in silver?
Silver articles become black on prolonged exposure to air. This is due to the formation of silver sulphide.
Silver articles become black on prolonged exposure to air. This is due to the formation of
Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of .
What is aqua regia? Name two special metals which are insoluble in common reagents but dissolve in aqua-regia.
One of the constituents of German silver is:
Silver is used in making mirrors.
The correct chemical formula of red lead is .
The correct chemical formula of red lead is:
The chemical formula of aluminium oxide is .
