Question

The chemical formula of tear gas is?
A. $CO{ Cl }_{ 2 }$
B. ${ C }_{ 10 }{ H }_{ 5 }{ ClN }_{ 2 }$
C. ${ Cl }_{ 2 }$
D. $PhCOC{ H }_{ 2 }Cl$

Answer 1

Hint: It is formally known as lachrymator agent and it’s a dangerous chemical weapon that causes severe eye and respiratory pain and skin irritation. Now try to figure out by yourself.

Complete step by step answer:
Let us first see what a tear gas is:
So basically, cyano carbon is the defining component of tear gas which is generally referred to as CS gas is an aerosol of a volatile solvent and 2-chlorobenzalmalononitrile, which is a solid compound at room temperature. CS gas is generally accepted as being non-lethal.
I know the above paragraph was a bit complicated!

Let me give you a better idea in simple words.
So tear gas is a common name for lachrymator. Lachrymator is a Latin word which refers to the meaning “tear”. So these agents cause the tear gland to secrete tears, as well they start irritating the mucous membranes and eyes.

It is called a chemical weapon because lachrymator agents were commonly used for riot control during World War 1, and increasingly toxic lachrymators were used.

The compound 2-chlorobenzalmalononitrile also called chlorobenzylidene malononitrile, with chemical formula; $ { C }_{ 10 }{ H }_{ 5 }{ ClN }_{ 2 }$
Common Lachrymators include pepper spray (OC gas), PAVA spray, CS gas, CR gas, CN gas (phenacyl chloride).
Therefore, The chemical formula of tear gas is ${ C }_{ 10 }{ H }_{ 5 }{ ClN }_{ 2 }$.

Hence, option B is the required answer.

Note: You should know that this gas can cause considerable damage to occupants, even kill the very young and elderly. Warning! Under no circumstances one should mess with this gas!