A) Tear Gas
B) Laughing Gas
C) Anaesthetic Gas
D) Noble Gas
Correct Answer: A
Solution :
Lacrimal gland, located under the upper eyelid at the outer cornea of the eye. is responsible for tearing during emotional stimulation or following corneal irritation by a foreign body or chemical substance. Tear gas, also called lachryrimator, refers to any of a group of substances that irritate the mucous membranes of the eyes, causing a stinging sensation and tears. It produces severe lachrymation by irritating the conjunctivae.
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