Advertisements
Advertisements
Question
Cassiterite is a copper ore.
Options
Right
Wrong
Advertisements
Solution
Cassiterite is a copper ore- Wrong
APPEARS IN
RELATED QUESTIONS
Give the importance of the following for living beings:
Hydrogen
Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is more reactive metal.
Give the effect of heat on their: hydroxide
With a labelled diagram, explain the electro-refining of a particular metal.
`2NaNO_3`
......................
`2Cu_2O +Cu_2S`
......................
`HgS + O_2`
..................
Distinguish between electrolytic methods of reduction and refining.
Which metal is used for:
making pipes, buckets, water tanks,
Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Write three balanced equations for the purification of bauxite.
Why does iron or zinc not occur free in nature?
What do you observe when hydrogen is passed over heated copper oxide?
Match the columns.
| Group A | Group B |
| 1. ZnS | a) Copper Sulphide |
| 2. HgS | b) Bauxite |
| c) Cinnabar | |
| d) Zinc blend |
Write the molecular formulae of the following compound.
Ferrous tungstate
Explain concept with example/explain with the help of a balanced equation.
Minerals
Complete the following flowchart.
Chemical formula of rust is ______
Zirconium is refined by ____________.
In leaching of alumina from bauxite by Bayer's process, then ore is treated with ______.
A process of extracting metals from aqueous solutions of their salts using suitable reducing agents is called ______
