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  4. Which of the following anions neutralises the acidic pH of the chyme that enters into the duodenum from the stomach?

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Q. Which of the following anions neutralises the acidic $pH$ of the chyme that enters into the duodenum from the stomach?

KVPYKVPY 2016

Solution:

Sodium bicarbonate $(HCO^{-}_{^3}$) present in pancreatic juice neutralises the acidity of the chyme to prevent damage to the walls of the duodenum and provides a neutral $pH$ environment for the digestion of chyme.