Question

Write IUPAC names for the following compound CH₃
1). CH₃ -CH - COOH 3). CH₃ - CH- C - COOCH₃
|. |. |
CONH₂. Br. OH
2). CH₂= C - CH - CH₂- CN
| |
OH CH₃

Answer 1

1 1-methyl propanoic acid
I don't know the other 2