Question

For dilution of acid acid is added to water and hot water to acid

Answer 1

For dilution of acid, acid is added to water and not water to acid because if you pour water into acid, a large amount of strengthened heat will be realeased and it will be harmful to you.

Answer 2

Explanation:

for dilution of acid acid is added into water not water into acid because if we add water into acid it forms an extremely concentrated solution of acid initially. So much heat is released that the solution may boil very violently splashing concentrated acid out of the container and all this because solution is exothermic.