question_answer

When propyne is treated with dilute \[{{H}_{2}}S{{O}_{4}}\] and \[HgS{{O}_{4}}\], the major product is [Kurukshetra CEE 2002]

A) Propanal

B) Propanol

C) Propyl hydrogen sulphate

D) Propanone

Correct Answer: D

Solution :

           \[C{{H}_{3}}-C\equiv CH+{{H}_{2}}O\xrightarrow{{{H}_{2}}S{{O}_{4}}/HgS{{O}_{4}}}\] \[\underset{\text{Prop}-\text{1}-\text{ene}\,\text{2}\,-\text{ol}}{\mathop{\left[ C{{H}_{3}}-\overset{\overset{OH}{\mathop{|\,\,\,}}\,}{\mathop{C\,=}}\,C{{H}_{2}} \right]}}\,\]