pH value of the medium changes as food travels along the digestive tract from mouth to oesophagus,
stomach and small intestine. The order in which pH value changes from mouth to small intestine is.
(1) acidic, neutral, basic, acidic
(2) neutral. neutral, acidic, basic
(3) basic, neutral, acidic, neutral
(4) basic, basic, acidic, basic
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Answer:
2) is the correct answer
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