Exercise-1

An alkyne on ozonolysis produces $2,3-$Butanedione. What is its possible structure?

Explain the following:
$C-O$ bond lengths in formic acid are$1.23 \mathrm{\AA } \&1.36 \mathrm{\AA }$ and both the $\mathrm{C}-\mathrm{O}$ bond lengths in sodium formate have the same value $1.27 \mathrm{\AA }$

Which of the following methods is not used for the conversion of carboxylic acids into acid halides?

When benzoic acid is treated with ${\mathrm{LiAlH}}_4$, it forms:

Which of the following does not give benzoic acid salt on oxidation with hot alkaline ${\mathrm{KMnO}}_4$?

The acid $\mathrm{D}$ obtained through the following sequence of reactions is:

${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{Br}\stackrel{\mathrm{Alc}. \mathrm{KOH}}{⟶}\mathrm{A}\underset{{\mathrm{CCl}}_4}{\overset{{\mathrm{Br}}_2}{\to }}\mathrm{B}\underset{\left(\mathrm{excess}\right)}{\overset{\mathrm{KCN}}{\to }}\mathrm{C}\stackrel{{\mathrm{H}}_3{\mathrm{O}}^{+}}{⟶}\mathrm{D}$

In which of the following reaction the final product is neither an acid nor an acid salt?

Acetic anhydride is prepared in the laboratory by heating sodium acetate with _______.