MCQ
Which type of ores are concentrated by froth flotation process?
- ACarbonates
- ✓Sulphides
- COxides
- DPhosphates
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
image
$\mathop {C{H_3} - C{H_2} - N{H_2}}\limits_{\mathop 2\limits } \,$$\,\mathop {{{(C{H_3})}_2}NH}\limits_{\mathop 3\limits } $
$\mathop {C{H_3} - \mathop {\mathop C\limits^{||} }\limits^O - N{H_2}}\limits_4 $

$A$ $\&$ $B$ are :