A) \[{{103}^{o}}\]
B) \[{{107}^{o}}\]
C) \[{{109}^{o}}28\]
D) \[\underline{X}\]
Correct Answer: A
Solution :
In Wacker process, alkene is oxidised into aldehyde. \[52153\] Since on ozonolysis, only alkenes produce aldehydes, A must be an alkene. To decide the structure of alkene that undergoes ozonolysis, bring the products together in such a way that O atoms are face to face and, replace 0 by double (=) bond. Thus,
Therefore, alkyne must be \[Alkyne\xrightarrow[Lindlars\,\,catalyst]{{{H}_{2}}}A\xrightarrow{Ozonolysis}\underset{only}{\mathop{B}}\,\] 
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