Question

Hola
Why do we cry while cutting onions?

Answer 1

Answer:

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. ... Lachrymatory-factor synthase is released into the air when we cut an onion.

Answer 2

Answer:

While we cut onions, hydrogen sulphide gas is released. This has is harmful to our eyes. So to prevent damage to our eyes and protect it from the gas, our tear glands secrete tears and we cry