Rank the following compounds in order of incr | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The compounds are: $(1)$ Aniline $(C_6H_5NH_2)$: The lone pair on nitrogen is involved in resonance with the benzene ring,making it a weak base. $

Vedclass · Accepted Answer

$4 < 3 < 1 < 2$

Vedclass · Answer

(B) The compounds are: $(1)$ Aniline $(C_6H_5NH_2)$: The lone pair on nitrogen is involved in resonance with the benzene ring,making it a weak base. $(2)$ Benzylamine $(C_6H_5CH_2NH_2)$: The lone pair on nitrogen is not involved in resonance,making it the strongest base among the given compounds. $(3)$ $o$-Nitroaniline $(o-NO_2-C_6H_4NH_2)$: The $-NO_2$ group is a strong electron-withdrawing group ($-M$ and $-I$ effect). Additionally,the ortho effect further decreases its basicity. $(4)$ Benzamide $(C_6H_5CONH_2)$: The lone pair on nitrogen is involved in resonance with the carbonyl group $(C=O)$,which is a very strong electron-withdrawing group,making it the weakest base. Comparing the basicity: $(4)$ is the weakest due to strong resonance with the carbonyl group. $(3)$ is weaker than $(1)$ due to the electron-withdrawing $-NO_2$ group and ortho effect. $(1)$ is weaker than $(2)$ because $(2)$ is an aliphatic amine where the lone pair is localized. Thus,the order of increasing basic strength is $4 < 3 < 1 < 2$.

Rank the following compounds in order of increasing basic strength. (weakest $\to$ strongest)

Similar Questions

In a reaction of aniline,a coloured product $C$ was obtained as shown below:
$A$ $\xrightarrow{NaNO_2/HCl} B$ $\xrightarrow{N,N-dimethylaniline, \text{cold}} C$
The structure of $C$ would be:

The product $(B)$ is:

Which of the following amines will not give $N_2$ gas on treatment with nitrous acid $(NaNO_2 + HCl)$?

An alkyl halide reacts with alcoholic ammonia in a sealed tube,the product formed will be

The correct option$(s)$ for the following sequence of reactions is(are):
$(A)$ $Q = KNO_2, W = LiAlH_4$
$(B)$ $R =$ benzenamine,$V = KCN$
$(C)$ $Q = AgNO_2, R =$ phenylmethanamine
$(D)$ $W = LiAlH_4, V = AgCN$

Vedclass Test Series

Exam Paper Generator

Online Exam Module