Which element is found in free state?

Which mineral does not contain $Al$?

The ore that contains both iron and copper is

Match the anionic species given in Column $I$ that are present in the ore$(s)$ given in Column $II$.

Column $I$	Column $II$
$A$. Carbonate	$P$. Siderite
$B$. Sulphide	$Q$. Malachite
$C$. Hydroxide	$R$. Bauxite
$D$. Oxide	$S$. Calamine
	$T$. Argentite

$ACl_2$ (excess) + $BCl_2$ $\rightarrow$ $ACl_4$ + $B \downarrow$
$BO \xrightarrow[\Delta]{> 400 \ ^oC} \frac{1}{2} O_2 + B$
If $A$ and $B$ are metals,then the ore of $B$ would be:

Which one of the following ores is a chloride?