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General Principles and processes of Isolation of Elements
medium
કઈ સલ્ફાઇડ અયસ્ક ધાતુઓ માટે સામાન્ય છે
A
$Ag,\, Cu$ અને $Pb$
B
$Ag,\, Cu$ અને $Sn$
C
$Ag,\, Mg$ અને $Pb$
D
$Al,\, Cu$ અને $Pb$
(AIIMS-2015)
Solution
Silver, copper and lead are commonly found in earth's crust as $Ag_2S$ (silver glance), $CuFeS_2$ (copper pyrites) and $PbS$ (galena).
Standard 12
Chemistry
