Advertisements
Advertisements
प्रश्न
Cassiterite is a copper ore.
विकल्प
Right
Wrong
Advertisements
उत्तर
Cassiterite is a copper ore- Wrong
APPEARS IN
संबंधित प्रश्न
brown powder deposit on iron?
Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is a more reactive metal.
Give the effect of heat on their: nitrates
Explain the following term:
Gangue
Explain the following terms:
(c) slag
Name the methods used for purification?
`Cu (OH)2`
................................
`2Pb(NO3)_2`
.........................
state the reactions at the two electrodes ?
what does it form with silica present in the ore?
Distinguish between electrolytic methods of reduction and refining.
Name the following:
Name an allotrope of a non-metal that allows electricity to pass through it.
Match the columns.
| Group A | Group B |
| 1. ZnS | a) Copper Sulphide |
| 2. HgS | b) Bauxite |
| c) Cinnabar | |
| d) Zinc blend |
Distinguish between:
Froth floatation - Leaching
Observe the figure and name and explain in brief the following method:
Which of the following methods is used to separate wolframite and stannic oxide present in cassiterite?
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).
Limestone is used as a flux in the extraction of ______.
After partial roasting, the sulphide of copper is reduced by ______.
