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General Principles and processes of Isolation of Elements
easy
Correct match is
$Ore$ $-$ $Process$ $-$ $Method$
A
$CuFeS_2$ $-$ Concentration $-$ Leaching
B
$Au$ $-$ Purification $-$ Polling
C
$Fe_2O_3$ $-$ Reduction $-$ Electrolysis
D
$PbS$ $-$ Reduction $-$ Self reduction
Solution
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Standard 12
Chemistry
