The correct order of basic strength of CH 3 NH 2 (I), ( CH 3)2 NH (II), ( CH 3)3 N (III), C 6 H 5 CH 2 NH 2 (IV) in gaseous phase is

Question

The correct order of basic strength of CH 3 NH 2 (I), ( CH 3)2 NH (II), ( CH 3)3 N (III), C 6 H 5 CH 2 NH 2 (IV) in gaseous phase is (A) IV < III < II < I (B) IV < III < I < II (C) I < II < III < IV (D) IV < I < II < III

Tardigrade Admin · Accepted Answer

In gaseous phase, the basic strength of alkylamines follows the following order

3^{\circ} > 2^{\circ} > 1^{\circ}

This is because of the presence of electron releasing

- C H_{3}

group which increases the electron density over nitrogen and thus, makes the more availability of lone pair for donation. Hence, the correct order of basic strength is

Q. The correct order of basic strength of CH3​NH2​ (I), (CH3​)2​NH (II), (CH3​)3​N (III), C6​H5​CH2​NH2​ (IV) in gaseous phase is

IV < III < II < I

IV < III < I < II

I < II < III < IV

IV < I < II < III

Q. The correct order of basic strength of
$C H_{3} N H_{2}$ (I),
$(C H_{3})_{2} N H$ (II),
$(C H_{3})_{3} N$ (III),
$C_{6} H_{5} C H_{2} N H_{2}$ (IV) in gaseous phase is