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प्रश्न
Complete flow chart given below.
उत्तर
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संबंधित प्रश्न
Give the importance of the following for living beings:
Nitrogen
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 more reactive metal.
Identify A and B and give their reactions with dil HCL and dil H2SO4 ?
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:
(a) the processes involved in
concentration :-
Explain the following terms:
(a) flux
Explain the following terms:
smelting
With a labelled diagram, explain the electro-refining of a particular metal.
`MnO_2 + 4Al` 
…………….
`Cu (OH)2`
................................
`HgS + O_2`
..................
Where are the cathode and anode in the electrolytic cell? Name the material used for these?
Why is flux used in the blast furnace?
Distinguish between electrolytic methods of reduction and refining.
Which metal is used for:
making pipes, buckets, water tanks,
State two properties of brass that render it more useful for some purpose than its components.
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.
Identify the following method of concentration of ores and explain briefly.
