Question

name the functional group shown in each molecule below. the first answer has been filled in for you. molecule functional group ch₃ - ch = ch - ch₃ alkene ch₃ o = c - ch₂ nh₂ ch₃ ch₃ - ch - o - ch₃ ch₂ - ch₂ ho - c = o

Explanation:

1. For the molecule with structure $O = C - CH_2 - NH_2$ and a methyl group ($CH_3$) attached to the carbon - atom of the carbonyl group, this is an amide functional group. The general formula of an amide is $R - CO - NH_2$ (in this case $R = CH_3$).
2. For the molecule $CH_3 - CH - O - CH_3$ (where there is a carbon - oxygen - carbon linkage), this is an ether functional group. The general formula of an ether is $R - O - R'$.
3. For the molecule $CH_3 - CH_2 - C(=O) - OH$, this is a carboxylic acid functional group. The general formula of a carboxylic acid is $R - COOH$.

Answer:

1. Amide
2. Ether
3. Carboxylic acid