Answers

2014-03-08T17:39:27+05:30
Because the ph bond of hcl in our stomach is not tightly bonded like other, and this chemical only touched the time digestion, so its doesn't harm the body at all. 
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2014-03-08T21:11:22+05:30
It is so because the HCl acid is very very diluted in the stomach and our stomach is developed like that it can handle the acid
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