Chemistry - Hydrocarbon Question with Solution | TestHub

According to the IUPAC conventions, a compound can be numbered as :
${\text{H}}_2\stackrel{1}{\text{C}}=\stackrel{2}{\text{C}}\text{H}-\stackrel{3}{\text{C}}{\text{H}}_2-\stackrel{4}{\text{C}}{\text{H}}_2-\stackrel{5}{\text{C}}\equiv \stackrel{6}{\text{C}}-\text{H}$
Here, C-2 is sp²and C-3 sp³hybridised