Advertisements
Advertisements
Question
Match the columns.
| Group A | Group B |
| 1. ZnS | a) Copper Sulphide |
| 2. HgS | b) Bauxite |
| c) Cinnabar | |
| d) Zinc blend |
Advertisements
Solution
| Group A | Group B |
| 1. ZnS | d) Zinc blend |
| 2. HgS | c) Cinnabar |
APPEARS IN
RELATED QUESTIONS
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 ?
oxides
Name the processes involved in refining of ores.
Explain the following terms:
(c) slag
Name the methods used for purification?
`Cu (OH)2`
................................
`ZnCO_3`
..............................
`2AgNO_3`
...........................
what does it form with silica present in the ore?
Which metal is used for:
lithographic plates for printing
Complete the following flow chart and answer the questions below:
i) In which method pine oil is used?
ii) Explain what method of concentration in brief.
Name the following:
Name an allotrope of a non-metal that allows electricity to pass through it.
In Wilfley table method to separate particles of gangue _______ method is used.
Write the molecular formulae of the following compound.
Stannic oxide
Write the molecular formulae of the following compound.
Ferrous tungstate
Draw a neat and labelled diagram for Froth Floatation Process.
Explain concept with example/explain with the help of a balanced equation.
Minerals
Observe the figure and name and explain in brief the following method:
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 ______.
A process of extracting metals from aqueous solutions of their salts using suitable reducing agents is called ______
