Consider the given compounds: (1) CH 3- CH 2- NH 2 (2) CH 3- CH = NH (3) CH 3- C ≡ N (4) C 2 H 5- NH - C 2 H 5 Arrange basicity of these compounds in decreasing order :

Question

Consider the given compounds: (1) CH 3- CH 2- NH 2 (2) CH 3- CH = NH (3) CH 3- C ≡ N (4) C 2 H 5- NH - C 2 H 5 Arrange basicity of these compounds in decreasing order : (A) 4 > 1 > 2 > 3 (B) 1 > 2 > 3 > 4 (C) 1 > 4 > 2 > 3 (D) 4 > 1 > 3 > 2

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/7ed524be6c34c2eba80ec4957ed2bbee-.png" /> Basic strength (BS) propto EDG (electron donating gp) propto (1/ text EWG (electron withdrawing gp) ) propto (1/ EN )

Q. Consider the given compounds :
(1) $C H_{3} - C H_{2} - N H_{2}$
(2) $C H_{3} - C H = N H$
(3) $C H_{3} - C \equiv N$
(4) $C_{2} H_{5} - N H - C_{2} H_{5}$
Arrange basicity of these compounds in decreasing order :

4 > 1 > 2 > 3

1 > 2 > 3 > 4

1 > 4 > 2 > 3

4 > 1 > 3 > 2

Basic strength (BS) $\propto$ EDG (electron donating $g p$ )
$\propto \frac{1}{EWG (electron withdrawing gp)}$
$\propto \frac{1}{EN}$

Q. Consider the given compounds : (1) CH3​−CH2​−NH2​ (2) CH3​−CH=NH (3) CH3​−C≡N (4) C2​H5​−NH−C2​H5​ Arrange basicity of these compounds in decreasing order :