Question

Chloropicrin is obtained by the reaction of.
A. Nitric acid on chlorobenzene.
B. Chlorine on picric acid.
C. Nitric acid on chloroform.
D. Steam on carbon tetrachloride.

Answer 1

Hint: We know that Chloropicrin, also known as nitro chloroform. Its chemical structural formula is \[C{l_3}CN{O_2}\] and it is a chemical compound now used as an all-purpose antimicrobial, fungicide, herbicide, insecticide, and nematicide.

 Complete step by step answer: We all know that chloropicrin is one of the tear gas and it is also known as trichloronitromethane. Tear gases are commonly called a lachrymator agent. Chloropicrin is prepared by heating chloroform with concentrated nitric acid.
We can write the chemical equation for the preparation of chloropicrin as,
$CHC{l_3} + HN{O_3}\xrightarrow{{}}C{l_3}N{O_2} + {H_2}O$
So, the correct answer is “Option C”.

Additional Information: Now we can discuss about the properties of chloropicrin,
-The chemical formula of chloropicrin is \[C{l_3}CN{O_2}\].
-The molecular weight of chloropicrin is \[164.38{\text{ }}grams/mole\].
-It is a colorless liquid and the boiling point of chloropicrin is.
-Chloropicrin is sparingly soluble in water and volatile liquid.
-Chloropicrin is also used in various fields and they are discussed below.
-In agriculture, it is used as a fungicide, insecticide, and herbicide.
-Chloropicrin irritates the mucosal membrane and causes draining of tears to remove the gas from the eyes. It is used as tear gas.
-Chloropicrin vapors irritate the skin, eyes, and in the upper respiratory tract.

Note: We must remember that the chloropicrin is also used in world war as a chemical weapon and it is highly harmful to both animals and humans because it primarily affects the breathing mechanism. We also know that the chloroform is also prepared by the reaction of nitromethane with sodium hypochlorite.