Question

(a)
How would you name the following compounds?
(i) $C{H}_3-C{H}_2-Br$

(b)
How would you name the following compounds?

(c)
How would you name the following compounds?

Answer 1

(a)
STEP 1: Select the chain with maximum number of carbon atoms​

Here the chain is having 2 carbon atoms, hence root word will be “eth”.​

​STEP 2: As this compound is saturated and as there are no functional groups, suffix will be “ane”.​

​STEP 3: Give the numbering in such a way that, locant (functional Group or substituent) gets lowest number​

Here, substituent is bromine, hence prefix will be “Bromo”.​

​Name of the compound: ​

1-Bromoethane

(b)

STEP 1: Select the chain with maximum number of carbon atoms​

Here, the chain is having 1 carbon atom, hence root word will be “Meth”​

​STEP 2: As this compound is saturated, primary suffix will be “ane”​

​STEP 3: Functional group here is aldehyde, hence secondary suffix will be “al”​

​Name of the compound: Methanal​

​(c)

STEP 1: Select the chain with maximum number of carbon atoms. Here, the chain is having 6 carbon atoms, hence root word will be “Hex”​

​STEP 2: As this compound is unsaturated and has a triple bond, primary suffix will be “yne”​

​STEP 3: Numbering should be given in such a way that, triple bond gets lowest number. Therefore, position of triple bond will be 1.​

​Name of the compound:​

1-Hexyne or Hex-1-yne