The weakest base among the following is:

Question

The weakest base among the following is: (A)  CH3NH2  (B)  (CH3)2NH  (C)  (CH3)3N  (D)  C6H5NH2

Tardigrade Admin · Accepted Answer

The correct order of increasing basicity among amines is aryl 1° <1° <3° <2° Hence, aniline (C6H5NH2) base. As in it, resonance is possible, which decrease electron density on N-atom, hence, it does not loose its lone pair of electron easily.

Q. The weakest base among the following is:

$C H_{3} N H_{2}$

$(C H_{3})_{2} N H$

$(C H_{3})_{3} N$

$C_{6} H_{5} N H_{2}$

The correct order of increasing basicity among amines is $a ry l 1^{\circ} < 1^{\circ} < 3^{\circ} < 2^{\circ}$ Hence, aniline $(C_{6} H_{5} N H_{2})$ base. As in it, resonance is possible, which decrease electron density on N-atom, hence, it does not loose its lone pair of electron easily.

Q. The weakest base among the following is:

CH3​NH2​

(CH3​)2​NH

(CH3​)3​N

C6​H5​NH2​

The correct order of increasing basicity among amines is aryl1∘<1∘<3∘<2∘ Hence, aniline (C6​H5​NH2​) base. As in it, resonance is possible, which decrease electron density on N-atom, hence, it does not loose its lone pair of electron easily.

$C H_{3} N H_{2}$

$(C H_{3})_{2} N H$

$(C H_{3})_{3} N$

$C_{6} H_{5} N H_{2}$

The correct order of increasing basicity among amines is $a ry l 1^{\circ} < 1^{\circ} < 3^{\circ} < 2^{\circ}$ Hence, aniline $(C_{6} H_{5} N H_{2})$ base. As in it, resonance is possible, which decrease electron density on N-atom, hence, it does not loose its lone pair of electron easily.