Common salt (NaCl) is not used as a raw material for preparation of which one of the following compounds?
Bleaching powder
Baking soda
Plaster of Paris
Washing soda
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC NDA-1 – 2021
– Bleaching powder: Chlorine gas, used to make bleaching powder, is typically produced by electrolysis of brine (aqueous NaCl).
– Baking soda (NaHCO3) and Washing soda (Na2CO3): Both are primarily manufactured using the Solvay process, which utilizes brine (NaCl solution), ammonia, and carbon dioxide.
Thus, NaCl is a raw material (directly or indirectly) for bleaching powder, baking soda, and washing soda, but not for Plaster of Paris.