$A$ dibromo derivative of an alkane reacts with sodium metal to form an alicyclic hydrocarbon. The derivative is

In the structure $CH_3 - C^2H(C^1H_3) - C^3H_2 - C^4H_3$,the order of homolytic bond dissociation energy for $C_1-H, C_2-H, C_3-H$ and $C_4-H$ is:

Which of the following alkanes is used for road surfacing?

The reaction conditions leading to the best yields of $C_2H_5Cl$ are

$A$ mixture of all isomers possible from the mono-chlorination of the structure $n$-pentane $(CH_3-CH_2-CH_2-CH_2-CH_3)$ is subjected to fractional distillation. How many fractions will be obtained?

The chemical added to petrol to prevent the deposition of lead in the combustion chamber is ............... .