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General Principles and processes of Isolation of Elements
easy
In which of the following metallurgy, self reduction is not possible :-
A
$ZnS \to Zn$
B
$PbS \to Pb$
C
$Cu_2S \to Cu$
D
$HgS \to Hg$
Solution
$2 P b S+3 O_{2} \rightarrow 2 P b O+2 S O_{2}$
$P b S+2 P b O \rightarrow 3 P b+S O_{2}$ (self reduction)
$C u_{2} S+2 C u_{2} O \rightarrow 6 C u+S O_{2}$
$H g S+2 H g O \rightarrow 3 H g+S O_{2}$
Standard 12
Chemistry
Similar Questions
Match list$-I$ with list$-II :$
list$-I$ | list$-II$ |
$(a)$ Mercury |
$(i)$ Vapour phase refining |
$(b)$ Copper | $(ii)$ Distillation refining |
$(c)$ Silicon | $(iii)$ Electrolytic refining |
$(d)$ Nickel | $(iv)$ Zone refining |
Choose the most appropriate answer from the option given below: