The compound formed when an alcoholic solution of ethylene dibromide is heated with granulated zinc is:

Q. Ethylene dibromide $\left(C_2{H}_{4}B{r}_2\right)$ and $1,2-dibromopropane\left(C_3{H}_{6}B{r}_2\right)$ forms a series of ideal solution over the whole range of composition. At ${85}^{\circ }C$, the vapour pressure of these pure liquids are are $183mmHg$ and $127mmHg$ respectively.
$10gm$ of ethylene dibromide is dissolved in $80gm$ of $1,2-dibromo-propane$. Calculate the partial pressures of each components and the total pressure of the solution at ${85}^{\circ }C$.
Calculate the composition of vapour in equilibrium with the above and express as mole fraction of ethylene dibromide.

Q.

Name the gas evolved when zinc granules are treated/ heated with :

(a) hydrochloric acid solution

(b) sodium hydroxide solution

Q. When $1,1,2,2-tetrabromo$ alkane is heated with zinc powder in alcohol product formed is :

Q. When amine is heated with chloroform and alcoholic KOH, a bad odour compound is formed. The compound is: