Question

Fresh milk has a pH of 6. On changing into curd, its pH becomes :

• A. more than 6
• B. less than 6
• C. does not change
• D. 7

Answer 1

The correct option is B less than 6

Fresh milk is less acidic with 6 but the milk bacteria lactose dehydrogenase converts it into curd by producing lactic acid which increases the acidity of milk making it less than 6.