the tanks in which milk is stored for retail selling are cleaned with sodium hydroxide solution every time before fresh milk is filled in them give the reason for this practice
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Give Reasons for this practice. 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.
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