Question

A straight chain hydrocarbon has the molecular formula C8H10. The hybridisation for the carbon atoms from one end of the chain to the other are respectively $s{p}^3,s{p}^2,s{p}^2,s{p}^3,s{p}^2,s{p}^2,sp$ and $sp$. The structural formula of the hydrocarbon would be

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

$\underset{s{p}^3}{C}{H}_3-\stackrel{s{p}^2}{C}H=\underset{s{p}^2}{C}H-\stackrel{s{p}^3}{C}{H}_2-\underset{s{p}^2}{C}H=\stackrel{s{p}^2}{C}H-\underset{sp}{C}\equiv \underset{sp}{C}H$