Question

Q.3 Compound A' is used for softening hard water and for the manufacture of glass. It reacts with dilute HCI to produce brisk effervescence is used to extinguish fire. This gas turns lime water milky and excess of this gas renders the solution colourless. Identify A and B and write down the sequence of reactions.

Answer 1

(b) is carbon dioxide and (a) may be Sodium carbonate

Answer 2

Answer:

A

Explanation:

a is sodium carbonate and b is carbon dioxide