Q. IUPAC name of following compound will be $ C{{H}_{3}}-C{{H}_{2}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{CH}}\,-\underset{\begin{smallmatrix} | \\ CHO \end{smallmatrix}}{\mathop{CH}}\,-C{{H}_{2}}-C{{H}_{3}} $
Rajasthan PETRajasthan PET 2002
Solution: