1.

2CuFeS_(2) + O_(2) to Cu_(2)S+ 2FeS + SO_(2) Which process of metallurgy of copper is represented by above equation ?

Answer»

Concentration
ROASTING
Reduction
Purification

Solution :Theorderofstability offreeradicals
`( C _6H _ 5 )_3overset ( * )C gt(C _6H_ 5 )_ 2overset (* ) C Hgt(CH_3)_3 overset (* )C gt(CH_3 )_2 overset (* )CH `
Thestabilisation offirsttwo is duetoresonance andlasttwois due to inductiveeffect.


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