Question

Match the name or structure with its functional group. Each molecule has only one functional group.
My choices are alkane, alcohol, alkyne, carboxylic acid, alkene, aldehyde, ketone, ester, and ether.
1. 2-propanol- alcohol
2. 2-methoxypentane- alkane
3. formaldehyde- aldehyde
4. acetone- ketone
5. 3-hexanone- ketone
6. 1-bromo-2-cyclononene- alkene
I am sure that numbers 1,4,5,6 are right but not sure on numbers 2 and 3
All are ok except 2. 2 is an ether.

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