$1.$ In the Solvay process, $\_($a$)\_$ reacts with carbon dioxide and water to form $\_($b$)\_,$ which then reacts with sodium chloride to produce $\_($c$)\_.$

$-$ a$)$ Ammonia

$-$ b$)$ Ammonium bicarbonate

$-$ c$)$ Sodium bicarbonate

$-$ Options:

$-$ i$)$ Limestone, Ammonium chloride, Sodium carbonate

$-$ ii$)$ Ammonia, Ammonium bicarbonate, Sodium bicarbonate

$-$ iii$)$ Carbon dioxide, Ammonia, Calcium carbonate

$2.$ In the electrolysis of brine using a diaphragm cell, $\_($a$)\_$ is produced at the anode, $\_($b$)\_$ is produced at the cathode, and $\_($c$)\_$ remains in solution.

$-$ a$)$ Chlorine gas

$-$ b$)$ Hydrogen gas

$-$ c$)$ Sodium hydroxide

$-$ Options:

$-$ i$)$ Sodium chloride, Chlorine gas, Water

$-$ ii$)$ Chlorine gas, Hydrogen gas, Sodium hydroxide

$-$ iii$)$ Oxygen gas, Sodium, Sodium chloride