MCQ
Names of some compounds are given. Which one is not in $IUPAC$ system
- A$\mathop {C{H_3}\mathop {\mathop {{\text{ }} - {\text{ }}CH{\text{ }} - {\text{ }}CH{\text{ }} - {\text{ }}}\limits_{|{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} \,\,\,\,\,\,\,\,\,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} |{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} \,{\kern 1pt} {\kern 1pt} {\kern 1pt} } }\limits_{OH\,\,\,\,\,\,\,\,{\kern 1pt} \,\,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} C{H_3}{\kern 1pt} } C{H_3}}\limits_{{\text{3 - Methyl - 2 - bulanol}}} $
- B$\mathop {C{H_3} - C \equiv C - CH{{(C{H_3})}_2}}\limits_{{\rm{4 - Methyl - 2 - pentyne}}} $
- C$\mathop {C{H_3} - C{H_2}\mathop {\mathop {{\text{ }} - {\text{ }}C{\text{ }} - {\text{ }}CH{\text{ }} - {\text{ }}}\limits_{||{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} \,\,\,\,\,\,\,\,\,\,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} |{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} } }\limits_{C{H_{2\,\,\,\,\,\,\,\,\,\,}}{\kern 1pt} C{H_{3\,}}} C{H_3}}\limits_{{\text{2 - Ethyl - 3 - methyl - bul - 1 - ene}}} $
- ✓$\mathop {C{H_3} - C{H_2} - C{H_2} - \mathop {\mathop {CH - \mathop {\mathop {CH{\text{ }} - {\text{ }}}\limits^{|\,\,\,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} } }\limits^{C{H_{3\,\,\,\,\,\,}}} }\limits_{|{\kern 1pt} \,\,\,\,\,\,\,\,\,\,{\kern 1pt} \,\,\,\,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} } }\limits_{C{H_2}C{H_{3\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} } C{H_2}C{H_3}}\limits_{{\text{3 - Methyl - 4 - ethylheptane}}} $