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during the process of extraction of pure copper from copper pyrite,SiO2 acts as acidic flux which combines with iron oxide(FeO) to form iron silicate(FeSiO3). CuFeS2 + heat ---> Cu2s + FeS + SO2 FeS + O2 ----> Feo FeO + SiO2 ----> FeSiO3
why standard enthalpy change of Br2(g) is not zero
The frequency of an electromagnetic radiation is 2x 10 6 Hz. . What is its wavelength in metres : (Velocity of light = 3x10 8 ms -1 ) (1)6.0x 10 14
What are the theoretical physical properties of esters?
Which one is the strongest bond: (1) Br- F (2) F-E (3) Cl-F (4) Br- Cl Ans: Br- F
Why does p-methoxybenzyl bromide reacts with ethanol faster than p-nitrobenzylbromide Solution) Because o-ch 3 is electron donating group while NO 2 is a electron withdrawing g
importance of chemistry in computer engineering
Advantage and disadvantage of westron
determination of lattice energy
What is difference between aluminium and beryllium?
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