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Question
Fresh milk has a pH of 6. When milk changes into curd, the pH value will :
(a) become 7
(b) become less than 6
(c) become more than 7
(d) remain unchanged
Fresh milk has a pH of 6. When milk changes into curd, the pH value will :
(a) become 7
(b) become less than 6
(c) become more than 7
(d) remain unchanged
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Solution
(b) become less than 6
Fresh milk has a pH of 6, before conversion. When milk is turned into curd then its pH value will decrease due to the production of lactic acid in curd which is acidic in nature.
Fresh milk has a pH of 6, before conversion. When milk is turned into curd then its pH value will decrease due to the production of lactic acid in curd which is acidic in nature.
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