NEET UG CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

In Serpeck's process silica is removed by heating the bauxite to $1800^{\circ} \mathrm{C}$ with coke in a current of $\mathrm{N_2}$

In extraction of lead from galena roasting and self-reduction lakes place in the same furnace but under different conditions of temperature and supply of air

The tin is obtained by the carbon reduction of tin oxide

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