Question

The tanks in which milk is stored for retail selling are cleaned with sodium hydroxide solution everytime fresh milk filled in them... give reason for this practice.

Answer 1

The solution which is used to clean the tanks is sodium hydroxide which basic in nature...it helps to prevent the formation of lactic acid(curd)..so milk can stored for a long time freshly.

Answer 2

Answer:

hope this helps you

Explanation:

Milk contains lactic acid and its effect remains in the empty tank.the acidic effect in the tank can be neutralized by cleaning it with a solution of a base,e.g.,NaOH.It changes the acid into salt which then gets removed from the tank by cleaning with water.