Question

Select the structure with correct numbering in the chain :

• A.
• B.
• C.
• D. All of the above.

Answer 1

The correct option is C

The correct numbering in the present case is one that gives lowest possible number to double bond.

a. wrong numbering, lowest number must be given to double bond not triple bond.
b. numbering must be done from right side of chain to give the lowest locant to double bond. hence it is also incorrect.
c. correct numbering as lowest locant is 1,3,6 from left to right side of chain.