question_answer 9)

Write structures and IUPAC names ofdifferent structural isomers of alkenes corresponding to\[{{C}_{5}}{{H}_{10}}\].

Answer:

(i) \[\overset{5}{\mathop{C{{H}_{3}}}}\,\overset{4}{\mathop{C{{H}_{2}}}}\,\underset{Pent-1-ene}{\mathop{\overset{3}{\mathop{C{{H}_{2}}}}\,\overset{2}{\mathop{CH}}\,}}\,=\overset{1}{\mathop{C{{H}_{2}}}}\,\] (ii) \[\underset{Pent-2-ene}{\mathop{C{{H}_{3}}CH=CHC{{H}_{2}}C{{H}_{3}}}}\,\] (iii) \[{{H}_{2}}C=\underset{\underset{\underset{2-Methylbut-1-ene}{\mathop{\text{C}{{\text{H}}_{\text{3}}}}}\,}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{C}}\,-C{{H}_{2}}C{{H}_{3}}\] (iv) \[{{H}_{2}}C=CH-\underset{\underset{\underset{3-Methylbut-1-ene}{\mathop{\text{C}{{\text{H}}_{\text{3}}}}}\,}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{CH}}\,-C{{H}_{3}}\] (v) \[{{H}_{3}}C=\underset{\underset{\underset{2-Methylbut-2-ene}{\mathop{\text{C}{{\text{H}}_{\text{3}}}}}\,}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{C}}\,-CH-C{{H}_{3}}\]