why do eyes burb when we cut onions
afroz12:
because it contains a chemical which makes us to weep
l have not got correct answer
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Onions produce the chemical irritant known as syn-propanethial-S-oxide. It stimulates the eyes' lachrymal glands so they release tears. Scientists used to blame the enzyme allinase for the instability of substances in a cut onion. ... The synthase enzyme converts the amino acids sulfoxides of the onion into sulfenic acid.
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it is due to sulfenic acid mix with tears to form sulphuric acid and cause irritation or tears.
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