Question

11.24identify the following as alkanes, alkenes, cycloalkenes, or alkynes: a. b. CH C. CH3CCCH CH d.

Answer 1

In the above compound, there are 3 carbon atoms in the ring and has one double bond. All the 3 carbon atoms are in cyclic position. So, the prefix is cycloprop - and suffix is ene. No, the chain and see that substituent and double bond gets lowest possible number. The methyl group is at 3^rd carbon and double bond at 1^st carbon There are 6 carbon atoms in the longest chain so the prefix is hex and it has one triple bond so the suffix is yne. Number the chain and see the substituents or triple bonded carbon gets lowest possible number. Thus triple bond is at 3^rd carbon \r\n There are four carbon atoms are in the longest chain so the prefix is but - and it has double bond so the suffix is ene. Thus double bond is at 2nd carbon and methyl substituents are at 2nd and 3^rd carbons There are 5 carbon atoms in the ring. All the 5 carbon atoms are in cyclic position and all carbon bonded with single bonds, so, the prefix is cyclohex and suffix is ane. Thus, ethynyl group is at 1st carbon