The correct order of boiling point among the following.

Options

A. `PH_(3) gt NH_(3) gt N (CH_(3))_(3) gt N (C_(2)H_(5))_(3)`
B. `NH_(3) gt PH_(3) gt N (CH_(3))_(3) gt N (C_(2)H_(5))_(3)`
C. `NH_(3) gt N (C_(2)H_(5))_(3) gt N (CH_(3))_(3) gt PH_(3)`
D. `NH_(3) gt N (C_(2)H_(5))_(3) gt PH_(3) gt N (CH_(3))_(3)`

Answer

B

Explanation

`{:((C_(2)H_(5))_(3)N,gt,(CH_(3))_(3)N,gt,(NH_(3)),gt,PH_(3),),(88.6^(@) C,,2.9^(@) C,,-33.34^(@) C,,-87.7^(@)C,):}`