\(C_{n}H_{2n}+\frac{3n}{2}O_{2}\rightarrow nCO_{2}+nH_{2}O\)

a  \(\rightarrow\)                               an

\(C_{\bar{m}}H_{2\bar{m}+3}N+(\frac{6\bar{m}+3}{4})O_{2}\rightarrow \bar{m}CO_{2}+(\frac{2\bar{m}+3}{2})H_{2}O+\frac{1}{2}N_{2}\)

\(b\, \rightarrow \, \, \, \, \, \, \, \, \, \, \, \,\, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \,\, \, \, \, \, \, \,\, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \bar{m}b\)

\(\left.\begin{matrix} CO_{2}=0,1=an+b\bar{m}\\ 0,2025=\frac{3an}{2}+(\frac{6\bar{m}+3}{4})b \end{matrix}\right\}\Rightarrow b=0,07\)

\(an+0,07\bar{m}=0,1\Rightarrow \bar{m}< 2\)

\(\Rightarrow 2amin: \left\{\begin{matrix} X:CH_{5}N\\ Y:C_{2}H_{7}N(etylamin) \end{matrix}\right.\)