give reason for thw the following... 1.keeping food in air tigh containe has been preventing rancidity.........2.moist air and acid gases are not good for some metals.......3.chips manafactures usually flushed nitrogen gas into it. .... plz. .... give the amswer correct and fast...... plzz..
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since rancidity requires oxygen it does not takes place in air tight container
pratibha36:
only one ans.
because i know only one among them
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