Question

when we cut onion why we get tear​

Answer 1

Explanation:

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.

Answer 2

Answer:

Due to a chemical called syn -propanethial -S- oxide

Explanation:

It simulates the eyes lachyraml glands so they ralase tears