Purification And Characterisation Of Organic Compounds Question 82
Question: In order to refine ‘blister copper’ it is melted in a furnace and is stirred with green logs of wood. The purpose is
[MP PET 1996]
Options:
A) To expel the dissolved gases in blister copper
B) To bring the impurities to surface and oxidize them
C) To increase the carbon content of copper
D) To reduce the metallic oxide impurities with hydrocarbon gases liberated from the wood
Show Answer
Answer:
Correct Answer: D
Solution:
$ 2Cu_2S+3O_2\to 2Cu_2O+2SO_2 $
$ 3Cu_2O+\underset{\begin{smallmatrix} \text{(From green} \\ \text{logs of wood)} \end{smallmatrix}}{\mathop{CH_4}}\to 6Cu+2H_2O+CO $
BETA
