Question

While diluting concentrated sulphuric acid, the water should be added to acids and not acid to the water.

• A. True
• B. False

Answer 1

The correct option is B

False

Water is never poured on acid to dilute it as a large amount of heat is evolved which changes poured water to steam. The steam so formed causes spurting of acid which can cause burn injuries, so dilution is done by pouring acid on a given amount of water in a controlled manner by continuous stirring, else acid being heavier will settle down. The evolved heat is dissipated in the water itself and hence the spurting of acid is minimized.