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Before subjecting the ore for smelting to extract iron , we need a reducing agent and a flux , so that we can extract the pure metal .
So , Coke is used as a reducing agent and limestone is used as a flux for extracting iron from its ore through smelting .

High purity copper metal (nearly 99. 99%) is obtained by electrolytic reduction .
In electrolytic reduction current is passed through the metal oxide to reduce it to pure metal whereas in electrolytic refining the impure metal is converted into pure metal .

Basicity of an acid is the number of hydrogen ions which can be produced by one molecule of acid .

Eg : Acetic acid is monobasic in nature as it can lose one proton or hydrogen atom to form acetate ion .

An aliphatic compound or aliphatic hydrocarbon is an organic compound containing hydrogen and carbon atoms that are usually linked together in chains that are straight .
Sometimes the chains are also in branched trains or in the form of non-aromatic structures.
Notably, apart from hydrogen some other elements like oxygen, nitrogen, chlorine, and sulphur may be bound to the carbon atoms in the chain.

? Rohini

? Launch date: July 18, 1980

? Launch site : Satish dhawan space centre, sriharikota

? Launching vehicle: SLV – 3

? India’s first indigenously built rocket

? Project director – Apj Abdul Kalam

? Apple

? Launch date : 19 june, 1981

? Launch site : Kourou (French guiana)

? Launching vehicle : Ariane-1 ( V-3 )

? India’s first communication satellite : Apple

? CARTOSAT -1

? India’s first cartography satellite (mapping)

? Launch date : May 5, 2005

? Launch site : Satish dhawan space centre, sriharikota

? Launch vehicle : PSLV – C6

Evaporation is a technique used to separate out homogeneous mixtures that contain one or more dissolved salts . The method drives off the liquid components from the solid components . The process typically involves heating the mixture until no more liquid remains .

?Luna 2 probe the first human-made object to reach the surface of another celestial body.

? The first human-made object to touch the Moon was the Soviet Union’s Luna 2, on 13 September 1959.

? The unit of Calorific value: – Kilojoule/ Kilogram

? Hydrogen is a fuel with the highest calorific value.

? This is highly inflammable and explosive in nature. so, it is difficult to store and transport it.

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