(A) Show the formation of magnesium chloride by electron transfer. Write the name of the cation and anion present in the compound formed. (Atomic Number of $Mg = 12$, $Cl = 17$)

OR

(B) How is zinc extracted from its ore? Name the processes involved in the extraction and write chemical equations for the reactions that occur during these processes.

(A) $Mg \rightarrow Mg^{2+} + 2e^-$

$Cl_2 + 2e^- \rightarrow 2Cl^-$

$Mg + Cl_2 \rightarrow MgCl_2$

The cation present in the compound is $Mg^{2+}$ and the anion is $Cl^-$.

OR

(B) Zinc is extracted from its ore through the following processes:

1. Concentration: Zinc blende $(ZnS)$ is concentrated by froth floatation process.

$ZnS + O_2 \rightarrow ZnO + SO_2$

1. Roasting: Zinc oxide is then roasted in the presence of carbon to obtain zinc.

$ZnO + C \rightarrow Zn + CO$

1. Refining: The obtained zinc is then refined by electrolysis.