Question

Which is the most volatile?

• A. $CH _{3} CH _{2} CH _{2} NH _{2}$
• B. $\left( CH _{3}\right)_{3} N$
• C. $H_{3} C-H_{2} C-\underset{\overset{|}{CH_3}}{N}-H$
• D. $CH _{3}- CH _{2}- OH$

Answer 1

Answer: (B)

volatility $\alpha \frac{1}{\text { Inter molecular forces of attraction }}$
$1^{0} \& 2^{0}$ Amines exibit hydrogen bonding, therefore intermolecular forces of attraction is more in these two amines, where as $3^{0}$ amines doesnot posses any hydrogen bonding
$\therefore 3^{0}$ amines are more volalite. $\left(H_{3} C\right)_{3} N$