Advertisements
Advertisements
प्रश्न
The chemical formula of zinc blend is _______.
पर्याय
ZnSO4
ZnS
ZnCO3
ZnO
Advertisements
उत्तर
The chemical formula of zinc blend is ZnS.
APPEARS IN
संबंधित प्रश्न
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
Name the processes involved in refining of ores.
Name:
(b) two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen
Explain the following terms:
(c) slag
`Cu (OH)2`
................................
`2Cu_2O +Cu_2S`
......................
`HgS + O_2`
..................
Where are the cathode and anode in the electrolytic cell? Name the material used for these?
what does it form with silica present in the ore?
How is it removed?
What is magnalium? Name the main elements present in it? Write its one use ?
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.
Copper pyrite
Observe the figure and name and explain in brief the following method:
Chemical formula of rust is ______
Explain the smelting process.
Zirconium is refined by ____________.
Calculate the difference between heat of combustion of carbon monoxide gas at constant pressure and at constant volume at 27°C? (R = 2 cal K-1 mol-1).
Bassemerisation is used in the extraction of ______.
Limestone is used as a flux in the extraction of ______.
