Question

Observe the given figure carefully and choose the incorrect statement(s)
(1) Large volume of acid should be added to a small volume of water slowly
(2) The figure represents the process of concentrating dilute $H_2{SO}_4$
(3) The process involves release of a large amount of heat
(4) Water should not be stirred

• A. 1 and 4 only
• B. 2 and 3 only
• C. 1, 2 and 4 only
• D. 2 only

Answer 1

The correct option is C 1, 2 and 4 only

Dilution of $H_2{SO}_4$ involves release of a large amount of heat. Therefore, instead of adding water to concentrated acid, acid should be added to large volume of water gently along the sides of glass rod while stirring the water slowly.