question_answer

The IUPAC name of \[C{{H}_{3}}-CH=CH-C\equiv CH\]is

A)  pent-3-en-l-yne

B)  pent-3-en-4-yne

C)  pent-2-en-4-yne

D)  pent-2-en-3-yne                  The IUPAC name of given compound is\[\underset{1}{\mathop{C}}\,{{H}_{3}}-\underset{pent\,-2-en-4-yne}{\mathop{\underset{2}{\mathop{C}}\,H=\underset{3}{\mathop{C}}\,H-\underset{4}{\mathop{C}}\,}}\,\equiv \underset{5}{\mathop{C}}\,-H\]