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Question

Lactometer is used to check whether _______ is adulterated or not.


A

oil

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B

milk

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C

sugar

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D

dal

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Solution

The correct option is B

milk


A lactometer is a little glass instrument that tests the purity of milk based on density or buoyancy and works on the principle of gravity. Adulteration of milk can be checked by using a lactometer. If the milk sample is pure, then the lactometer floats on it and if it is adulterated or impure, then the lactometer sinks.

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