What is secondary...iso....tertiary....and neo?

Answers (1)

Prefix iso is used for those alkanes in which one methyl group is attached to the next to end carbon atom (second last) of the continuous chain.

Example:  CH3CH(CH3) - CH2CH3

                              isopentane  

 

Prefix neo is used for those alkanes in which two methyl groups are attached to the next to end carbon atom (second last) of the continuous chain.

Example: CH3C(CH3)2 - CH3

                       neopentane 

 

The prefix "tert" or "t" is used when the functional group is bonded to a tertiary carbon.
Example:  

                        

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