Question: Calamine and Malachite, respectively are the ores of:
Nickel and Aluminium
Zinc and Copper
Copper and Iron
Aluminium and Zinc
Correct Option: , 2
Solution:
Calamine $\Rightarrow \mathrm{ZnCO}_{3}$
Malachite $\Rightarrow \mathrm{Cu}(\mathrm{OH})_{2} \cdot \mathrm{CuCO}_{3}$
