Functional Groups

Name the functional group of:

RCOOH

And the prefix/suffix

Name the functional group of:

RCOOCOR

And the Prefix/Suffix

Name the functional group of

RCOOR

And the Prefix/Suffix

Name the functional group of:

RCOCl

And the Prefix/Suffix

Name the functional group of:

RCONH2

And its Prefix/Suffix