Question

Which statement is true concerning the structure and its functional group?Group of answer choicesCH3CH2OH is a caboxylic acidCH3CH2NH2 is an amineCH3CH2COOH is an esterCH3CH2SH is an ethernone of the above

Answer 1

Amine:

Amines are molecules that contain carbon-nitrogen bonds. The nitrogen atom in an amine has a lone pair of electrons and three bonds to other atoms, either carbon or hydrogen.

Functional group: NH2-R primary amine; NH-R secondary amine; N-R tertiary amine.

CH3CH2NH2 is the only one true. This is ethylamine

CH3CH2OH: OH- alcohol group

CH3CH2COOH: -COOH the functional group is a carboxyl group from a carboxylic acid.

CH3CH2SH: SH- this functional group is referred to as either a thiol group or a sulfhydryl group.

Answer: CH3CH2NH2 is an amine