Draw a flow chart showing uses of products from chlor-alkali process.

Give reason why tarnished copper vessel begins to shine again when rubbed with lemon.

Give a reason why all alkalis are bases, but all bases are not alkalis.

Give a reason when a mild base like baking soda is used on the honey-bee stung area gives relief.

Identify A in the following reactions and write the chemical name of A.

${\mathrm{HNO}}_3+\mathrm{NaOH}\to \mathrm{A}+{\mathrm{H}}_2\mathrm{O}$

Identify B in the following reactions and write the chemical name of B.

$\mathrm{B}+\mathrm{Ca}{\left(\mathrm{OH}\right)}_2\to {\mathrm{CaSO}}_4+2{\mathrm{H}}_2\mathrm{O}$

Identify C in the following reactions and write the chemical name of C.

$\mathrm{HCl}+\mathrm{C}\to \mathrm{KCl}+{\mathrm{H}}_2\mathrm{O}$