Question

In \[C{H_3}N{O_2} + Sn + HCl\,\, \to \,\,C{H_3}X\] , the $X$ is
(A) $ - N{H_2}$
(B) $ - COOH$
(C) $ - CHO$
(D) ${\left( {C{H_3}CO} \right)_2}O$

Answer 1

Hint: Nitromethane \[\left( {C{H_3}N{O_2}} \right)\] is one of the most widely used organic chemical building blocks and an essential organic chemical raw material. Nitro functional groups are the functional group found in CH3NO2 (NO2). When it reacts in the presence of $Sn$ and $HCl$ it forms methyl amine having chemical formula $C{H_3}N{H_2}$ .

Complete Step by Step Solution:
The atoms or group of atoms that determine a chemical compound's properties are known as the functional group. A type of chemical compound known as a nitro compound has "one or more nitro groups." Another name for this group is a strong "electron-withdrawing." This characteristic allows the C-H bonds next to the "nitro group" to be acidic. The electrophilic aromatic substitution is contained by the nitro group. This hardly ever happens in nature.
 $Sn$ and $HCl$ together form a strong reducing agent. This is why when \[C{H_3}N{O_2}\] is made to react in the presence of $Sn$ and $HCl$ , it will accept 6 hydrogen atom and form $C{H_3}N{H_2}$ along with water. $C{H_3}N{H_2}$ so formed is known as methyl amine.
Methyl isocyanide \[\left( {C{H_3}NC} \right)\] is produced when $C{H_3}N{H_2}$ is reacted with \[CHC{l_3}\] and alcoholic \[KOH\]. Dimethylamine \[\left( {C{H_3}NHC{H_3}} \right)\] is produced when \[C{H_3}NC\] is treated with \[{H_2}/Pt\] .
But \[Sn/HCl\] treatment of \[C{H_3}N{O_2}\] results in $C{H_3}N{H_2}$ (methyl amine).
Organic methylamine has the chemical formula CH3NH2. This colourless gas is an ammonia derivative in which a methyl group has been added in place of one hydrogen atom. The simplest primary amine is this one.
Therefore we get\[X = - N{H_2}\] . Hence, we can say that product so formed is an amine group.
Hence, option A. is the answer.

Note: $C{H_3}N{H_2}$ is also named as Methylamine but the preferred IUPAC name is methanamine. Pharmaceuticals, pesticides, paint removers, surfactants, and rubber compounds are all made with methylamine. The simplest of the methylamines is made up of ammonia with a single methyl group. As a mouse metabolite, it serves a purpose.