Question : The purity of milk is determined by:
Option 1: Hydrometer
Option 2: Lactometer
Option 3: Stalagmometer
Option 4: Thermometer
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Correct Answer: Lactometer
Solution : The correct answer is Lactometer.
A lactometer works on Archimedes' principle, it is used to determine the purity of a sample of milk. The most common tests used to determine milk quality are somatic cell count (SCC), standard plate counts (SPC), preliminary incubation counts (PIC), lab pasteurised counts (LPC), and coliform counts.
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