Question

Acetylene is the first member of a family of hydrocarbons called alkynes.
$H-C\equiv C-H$

What is its empirical formula?

• A. $CH$
• B. $C_2{H}_2$
• C. $(CH{)}_2$
• D. $(CH{)}_3$

Answer 1

The correct option is A

$CH$

Empirical formula is made up of simplest whole number ratio of all the elements of the molecule.
In the given case, acetylene is $C_2{H}_2$.

The simplest ratio is CH