question_answer

\[X\xrightarrow[{{O}_{3}}]{Ozonolysis}C{{H}_{3}}CHO+C{{H}_{3}}C{{H}_{2}}CHO.\] X is:

A)  2-butene       

B)  2-pentene

C)  1-pentene      

D)  1-butene

Correct Answer: B

Solution :

\[C{{H}_{3}}-\overset{2-pentene}{\mathop{CH=CH}}\,-C{{H}_{2}}-C{{H}_{3}}\xrightarrow{O}\]                                                                 \[\underset{Acetaldehyde}{\mathop{C{{H}_{3}}CHO}}\,+\underset{\Pr opanal}{\mathop{C{{H}_{3}}C{{H}_{2}}CHO}}\,\]