How is nitroethane prepared from Ethane, ethyl bromide and acetaldoxime?

What happens when

2 – Nitropropane boiled with HCl

Classify the following amine as primary, secondary or tertiary:

 ${\left({\mathrm{C}}_2{\mathrm{H}}_5\right)}_2{\mathrm{CHNH}}_2$

Write down the $\mathrm{IUPAC}$ name of 

Write IUPAC name of the following compound and classify it into primary, secondary and tertiary amine.

${\mathrm{CH}}_3{\left({\mathrm{CH}}_2\right)}_2{\mathrm{NH}}_2$