Exercise 1

The product of which of the following reactions forms a reddish brown precipitate when subjected to Fehling's test?

The major product formed when $2-$butene is reacted with ${\mathrm{O}}_3$ followed by treatment with $\mathrm{Zn}/{\mathrm{H}}_2\mathrm{O}$ is

In the following reaction ${\mathrm{H}}_3\mathrm{C}-\mathrm{C}\equiv \mathrm{C}-\mathrm{H}\underset{{\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{{\mathrm{Hg}}^{2+}}{\to }}\mathrm{X}\underset{\mathrm{PhCHO}}{\overset{\mathrm{diINaOH}}{\to }}\mathrm{Y}$ $\mathrm{X}$ and $\mathrm{Y}$, respectively, are

Among the following reactions, a mixture of diastereomers is produced form

The major product of the following reaction sequence

 is

The number of total product produced upon monochlorination of $(+) 2-$ chlorobutane.

Which is the best reagent to convert cyclohexanol into cyclohexene.

A solution of $20.2 \mathrm{g}$ of $1, 2$ -dibromopropane in $\mathrm{MeOH}$ upon heating with excess $\mathrm{Zn}$ produces $3.58 \mathrm{g}$ of an unsaturated $\mathrm{X}$. The yield $(\%)$ is closest to [Atomic weight of $\mathrm{Br}$ is $80$]