Question

Fill in the blanks.

S.No	Molecular Formula	Common Name	IUPAC Name
\[1.\]	$C{{H}_{3}}COOH$		Ethanoic Acid
\[2.\]	$HCHO$	Formaldehyde

Answer 1

Hint: We know that IUPAC stands for International Union of Pure and Applied Chemistry. An IUPAC name is a name given to a compound on the basis of some rules which gives the compound a systematic name. On the other hand, the common name of a compound is a name used in our day to day lives.


Complete answer:
In chemical nomenclature, the IUPAC nomenclature of organic chemistry is a systematic method of naming organic chemical compounds, as recommended by the International Union of Pure and Applied Chemistry (IUPAC). The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which chemical compound the name refers to and each chemical name should refer to a single substance. To avoid long and tedious names in normal communication, the official IUPAC naming recommendations are not always followed in practice, except when it is necessary to give an unambiguous and absolute de

$C{{H}_{3}}COOH$: The common name of this compound is acetic acid and its IUPAC name is ethanoic acid.
$HCHO$: The common name of this compound is formaldehyde and its IUPAC name is methanal
Therefore,

S.No	Molecular Formula	Common Name	IUPAC Name
\[1.\]	$C{{H}_{3}}COOH$	Acetic Acid	Ethanoic Acid
\[2.\]	$HCHO$	Formaldehyde	Metanal

Note: Remember that the IUPAC name can sometimes be simpler than the common name of a compound, as with ethanol, instead of ethyl alcohol. Generally, the common name of a compound is simpler than its IUPAC name.