Question

Why N$H_{3}$ is more basic than P$H_{3}$

Answer 1

Pre - Requisite Knowledge-

• Nitrogen And Phosphorus Belong To The Same Group In The Periodic Table ( i.e. Group Number 15)
• In NH3 And PH3 There Is 1 Lone Pair Each
• The Basic Character Of Any Compound Can Be Judge By Knowing It's Ability To Denote It's Lone Pair.

Explanation ;

NH3 is more basic than PH3.....

This Is Beacuse

Both The NH3 And PH3 Has One Lone Pair Which Is Present On N And P Atom Respectively.

And Size Of N Is Smaller Due To Which Is Has High Electron Density And Has More Tendency To Donate It's Lone Pair

Hope You Found This Helpful

#BeBrainly

Answer 2

Answer:

BasicallyNH

3

is a base due to the lone pair of electrons present on the Nitrogen atom which is available for donation. On the other hand PH

3

is also a base but its basic character is less than that of NH

3

because the nitrogen in phosphorous have lone pair of electrons that are not readily available for donation.

Also the P-H bonds are weaker than N-H bonds, so there’s not as much compensation for protonating PH

3

. This is a result of the inert pair effect, seen in heavier elements.

Explanation:

i hope it helps you