Question:
Match List-I with List-II.

Choose the correct answer from the option given below:
Correct Option: , 2
Solution:
Sodium carbonate $\mathrm{Na}_{2} \mathrm{CO}_{3} \backslash \& \mathrm{NaHCO}_{3}$
Titanium : Van arkel method

Chlorine : Decon's process

Sodium hydroxide :- Caster-Kellner cell