JEE Advanced | 2014d and f-Block ElementsHard
Question
Upon heating with Cu2S, the reagent(s) that give copper metal is/are
Options
A.CuFeS2
B.CuO
C.Cu2O
D.CuSO4
Solution
Cu2S + 2Cu2O 
6Cu + SO2
Since, CuSO4 as well as CuO both on heating produces Cu2O as shown below so, they also produce Cu on heating with Cu2S.
2CuO Cu2O + 
O2
CuSO4 CuO + SO2 + O2
6Cu + SO2Since, CuSO4 as well as CuO both on heating produces Cu2O as shown below so, they also produce Cu on heating with Cu2S.
2CuO
Cu2O + O2CuSO4
CuO + SO2 + O2 Create a free account to view solution
View Solution FreeMore d and f-Block Elements Questions
Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statements about cerium is incorrect?...The atomic numbers of vanadium (V), Chromium (Cr), manganese (Mn) and iron (Fe) are respectively 23, 24, 25 and 26. Whic...The actinoids exhibits more number of oxidation states in general than the lanthanoids. This is because...When copper is heated with conc. HNO3 it produces:...Most common oxidation states of Ce (cerium) are...