Đáp án:

Bậc `1:`

`1)\ CH_3-[CH_2]_3-NH_2:`$Butan-1-amine$

`2)\ (CH_3)_2CH-CH_2-NH_2:`$2-methylpropan-1-amine$

`3)\ CH_3-CH_2-CH(NH_2)-CH_3:`$Butan-2-amine$

`4)\ (CH_3)_3C-NH_2:`$2-methylpropan-2-amine$

Bậc `2:`

`5)\ CH_3-[CH_2]_2-NH-CH_3:`$N-methylpropan-1-amine$

`6)\ (CH_3)_2CH-NH-CH_3:`$N-methylpropan-2-amine$

`7)\ CH_3-CH_2-NH-CH_2-CH_3:`$N-ethylethanamine$

Bậc `3:`

`8)\ (CH_3)_2-N-CH_2-CH_3:`$N,N-dimethylethanamine$