CBSE Class 12 Chemistry 2019 Delhi Set 2 Solved Paper

Question : 1 of 10

Marks: +1, -0

SECTION - A

Arrange the following in increasing order of base strength in gas phase:

( {\C}_2 {\H}_5) _3 {\N}, {\C}_2 {\H}_5 {\NH}_2, ( {\C}_2 {\H}_5) _2 {\NH}

Solution:

Base strength is the ability to donate lone pair. Due to inductive effect of

{\C}_2 {\H}_5

, the negative charge density on nitrogen atom increases. Therefore, lone pair is easily available for donation.

{\C}_2 {\H}_5 {\NH}_2< ( {\C}_2 {\H}_5) _2 {\NH}< ( {\C}_2 {\H}_5) _3 {\N}

Go to Question:

Next Question