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Q.
Sulphide ores are common for the metals
NTA AbhyasNTA Abhyas 2022
Solution:
Silver, copper and lead mainly found in their sulphides ores like Argentite $\left( Ag _{2} S \right)$, Copperpyrite $\left( CuFeS _{2}\right)$ and Galena $( PbS )$