Question

What is the name of the molecule below?

O A. 1-ethyne
B. 1-butyne
C. 2-butyne
D. 2-ethyne

Answer 1

C.) 2-butyne

Step-by-step explanation:

Since the molecule has 4 central carbons, it has the prefix but-.

Since the molecule has a triple bond between central carbons, it has an ending of -yne.

Since the triple bond starts on the second carbon, it has a 2 - prefix.