Question

The IUPAC name of $ C{H_3}CN $ is methyl cyanide. State whether the following statement is true or false.

Answer 1

Hint: The basic knowledge about our IUPAC Nomenclature is very important to answer this question. There are set rules in an IUPAC nomenclature to give the name of a compound. IUPAC stands for the international union of pure and applied chemistry.

Complete step by step answer:
IUPAC nomenclature is based on naming a molecule’s longest chain of carbons connected by single bonds, whether in a continuous chain or a ring. All deviations, either multiple bonds or atoms other than carbon, hydrogen are indicated by prefixes or suffixes, according to a specific set of priorities.
Step 1: The parent chain is the longest straight chain which contains the highest number of the carbon atom, hence the compound contains a two carbon atom and a nitrile group. Hence its parent chain is ethane.
Step2: Now there is no other functional group attached to the parent chain therefore the suffix of the compound is nitrile.
Step 3: Now from the above 2 steps we can write the name of the compound in the third step that is
Ethan-1-nitrile.
Hence the IUPAC name of $ C{H_3}CN $ is not methyl cyanide and rather ethane nitrile. Methyl cyanide is the common name for ethane nitrile and therefore the above statement is false that methyl cyanide is not the IUPAC name of $ C{H_3}CN $ .
This statement is false.

Note:
Use the following steps in the series to get an IUPAC name of the compound. First, select the longest carbon chain. Then numbered the chain according to the preference given or priority is given to the functional group. Add the suffixes and prefixes according to the priority of that functional group.