Question

A hydrocarbon has a molecular formula $X\left(C_6{H}_6\right)$ . The only type of unsaturation that $X$ has are triple bonds. How many different $IUPAC$ names can be assigned to $X$?

• A. 5
• B. 3
• C. 4
• D. 7

Answer 1

The correct option is A 5

The given formula of X indicates that it has two triple bonds (four degree of unsaturation). Hence , possible diynes are
All of the above five diyne have different IUPAC names.