Arrange the following (i) In decreasing order of basic strength in gas phase : $C_2H_5NH_2, (C_2H_5)_2NH, (C_2H_5)_3 N$ and $NH_3$ (ii) In increasing order of boiling point : $C_2H_5OH, (CH_3)_2NH,C_2H_5NH_2$

Question

$\begin{array}{1 1} (a) (i)(C_2H_5)_3N > (C_2H_5)_2NH > C_2H_5NH_2 > NH_3(ii)(CH_3)_2NH < C_2H_5NH_2 < C_2H_5OH \\ (b)(i)(C_2H_5)_3N > (C_2H_5)_2NH > NH_3> C_2H_5NH_2 (ii)(CH_3)_2NH< C_2H_5OH < C_2H_5NH_2 < C_2H_5OH\\ (c)(i)(C_2H_5)_3N > (C_2H_5)_2NH > NH_3> C_2H_5NH_2 (ii)(CH_3)_2NH> C_2H_5OH > C_2H_5NH_2 > C_2H_5OH \\(d) (i)(C_2H_5)_3N < (C_2H_5)_2NH < NH_3< C_2H_5NH_2 (ii)(CH_3)_2NH< C_2H_5OH < C_2H_5NH_2 < C_2H_5OH \end{array}$