Question

in specific group of unsaturated hydrocarbons though the ratio of carbon and hydrogen atom is 1 is to 2ch2 is not the first member of those hydrocarbons what is the reason for this write the structural formula of the first member of that

Answer 1

benzene — c6h6. I am not sure, okay.

Answer 2

Hey Dear,

● Explanation -

• Aliphatic unsaturated hydrocarbons can be either alkenes or alkynes.
• Alkenes have general formula C2H2n, thus C : H = 1 : 2.
• Alkenes are defined with at least one C=C bond, for which at least 2 C-atoms are required.
• Thus, first member of this series is not CH2 but CH2=CH2 (ethene).

Hope this helped you.