Question

(4) Name the device used to determine the purity of a sample of milk.
Ans.
Lactometer is the instrument used to determine the purity of a sample of a milk ​

Answer 1

Answer:

A lactometer is used to check purity of cow's milk

Explanation:

A Lactometer is made up of bowling glass tube which is cylindrical vessel. So to check the specific gravity of milk the indication of milk composition contains a wide range of substances like water which is heavier or lighter. To check the purity of milk lactometer will be dipped in to the milk at the point which sinks up to the water.

Answer 2

Brother / sis , why you are posting answers along with your questions ??

Anyway lactometer is used to check the purity of milk