The ozonolysis of $(C{H}_3{)}_{2}C=C(C{H}_3{)}_2$ followed by treatment with Zinc and water will give

Q. Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound $X$. Compound $X$ on further treatment with aqueous $KOH$ yields compound $Y$. Compound $Y$ is:

Q. Ozonolysis of $2,3-$ dimethylbut $-1-$ ene followed by reduction with zinc and water gives:

Q. Hydrocarbon ${}^{\prime }{A}^{\prime }\left(C_4{H}_8\right)$ on reaction with $HCl$ gives a compound ${}^{\prime }{B}^{\prime }\left(C_4{H}_{9}Cl\right)$, which on reaction with $1mol$ of ${NH}_3$ gives compound ${}^{\prime }{C}^{\prime }\left(C_4{H}_{11}N\right)$. On reacting with $Na{NO}_2$ and $HCl$ followed by treatment with water. the compound $C$ yields an optically active alcohol, ${}^{\prime }{D}^{\prime }$. Ozonolysis of ${}^{\prime }{A}^{\prime }$ gives $2$ mol of acetaldehyde. Identify compound ${}^{\prime }{D}^{\prime }$.