Question

Q. Select the letter A to H for the correct answer corresponding to the statement.

A. Ammonical $\mathrm{CuCl}$ B. Trichloromethane

C. Trichloroethane D. Bromine solution

E. Aqueous $\mathrm{KOH}$ F. Ethene

G. Soda-lime H. Ethyne

The substance which gives Bromoethane in reaction with Hydrogen bromide.

Answer 1

1. Ethene is an unsaturated hydrocarbon. It is a colorless and flammable gas.
2. The reaction of Ethene (${\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{4}}$) with Hydrogen bromide gives Bromoethane (${\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{5}}\mathbf{Br}$).
3. The reaction is shown below.
   $$\begin{gathered} {\mathrm{H}}_2\mathrm{C}={\mathrm{CH}}_2\left(g\mathit{\right)}+\mathrm{HBr}\left(g\right)\to {\mathrm{CH}}_3-{\mathrm{CH}}_2-\mathrm{Br}\left(l\right) \\ \mathrm{Ethene}\mathrm{hydrogen}\mathrm{Bromoethane} \\ \mathrm{bromide} \end{gathered}$$
4. Therefore, the substance which gives Bromoethane in reaction with Hydrogen bromide is Ethene.
5. Hence, the correct answer corresponding to the statement is F.