Question

Heya!
Why do tears come from our eyes while cutting onion?
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Answer 1

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Heya !!!

The synthase enzyme converts the amino acids sulfoxides of the onion into sulfenic acid. The unstable sulfenic acid rearranges itself into syn-ropanethial-S-oxide. Syn-propanethial-S-oxide gets into the air and comes in contact with our eyes....

The lachrymal glands become irritated and produces the tears!..

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Answer 2

Qᴜᴇꜱᴛɪᴏɴ⤵

ᴡʜʏ ᴅᴏ ᴛᴇᴀʀꜱ ᴄᴏᴍᴇ ꜰʀᴏᴍ ᴏᴜʀ ᴇʏᴇꜱ ᴡʜɪʟᴇ ᴄᴜᴛᴛɪɴɢ ᴏɴɪᴏɴ?

↘ᴀɴꜱᴡᴇʀ↙

ᴏɴɪᴏɴ ᴘʀᴏᴅᴜᴄᴇ ᴛʜᴇ ᴄʜᴇᴍɪᴄᴀʟ ɪʀʀɪᴛᴀɴᴛ ᴋɴᴏᴡɴ ᴀꜱ ꜱʏɴ-ᴘʀᴏᴘᴀɴᴇᴛʜɪᴀʟ-ꜱ-ᴏxɪᴅᴇ. ɪᴛ ꜱᴛɪᴍᴜʟᴀᴛᴇꜱ ᴛʜᴇ ᴇʏᴇꜱ ʟᴀᴄʜʀʏᴍᴀʟ ɢʟᴀɴᴅꜱ ꜱᴏ ᴛʜᴇʏ ʀᴇʟᴇᴀꜱᴇ ᴛᴇᴀʀꜱ