Why do our eyes tear when we cut onions? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 Students CBSE Exams.

Why do our eyes tear when we cut onions?

When we cut onions, a chemical is released into the air. This reacts with moisture on the surface of our eyes forming a weak solution of sulphuric acid. The acid induces a stinging sensation. The eyes react by forming tears which further dilute the acid and wash it off. One solution is to chill the onions before slicing them.

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