Question

Some water bubbles emanate slowly from the bottom and walls of the vessel and come out of water

Answer 1

Dilution of concentrated acid is an exothermic process. If water is added to a concentrated acid, the heat generated may cause the mixture to splash out and cause burns. When the acid is added to water slowly with constant stirring, the mixture will not splash out.

Answer 2

Explanation:

Answer:

Sulphur dioxide is a reducing agent but in some reactions, it acts as an Reducing agent:SO2 + H2O -->H2SO3.