Why is there no back bonding in

P\left ( SiH_{3} \right )_{3}

whereas, there is  backbonding in

\left ( SiH_{3} \right )_{3}N

though both P and N have a lone pair, and Si, having a vacant d orbital, is present in both compounds?

 

Answers (1)

CONDITIONS FOR BACK BONDING:

(1) Both of the atoms bonded with back Bonding are must be present in the 2nd-2nd or 2nd-3rd period.

(2) One of the atoms has lone pair and another has vacant Orbital and the direction of back Bonding depends upon vacant Orbital.

(3) The donor atom must have localized donatable electron pair.

P\left ( SiH_{3} \right )_{3}  is not satisfy the first condition.

Most Viewed Questions

Preparation Products

JEE Foundation + Knockout JEE Main 2024 (Easy Installment)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 3999/-
Buy Now
Knockout VITEEE 2022

An exhaustive program for the complete preparation of Physics Chemistry Mathematics English and Aptitude of VITEEE, Adaptive Time Table, Chapterwise Questions, Concepts Flashcards for Quick and Effective Revision, Unlimited Chapter wise Subject wise and Full mock test for enhancing Speed & Accuracy,.

₹ 2999/- ₹ 1999/-
Buy Now
Knockout BITSAT 2022

An exhaustive program for the complete preparation of Physics Chemistry Mathematics English & Logical Reasoning of BITSAT exam, Adaptive Time Table, Chapterwise Questions, Concepts Flashcards for Quick and Effective Revision, Unlimited Chapter wise Subject wise and Full mock test for enhancing Speed & Accuracy,.

₹ 2999/- ₹ 1999/-
Buy Now
Engineering Prep Combo

An exhaustive e-learning program to boost your preparation for the leading engineering entrance exams like:-, BITSAT, VITEEE, MET, SRMJEEE, AEEE, MHT CET, AP EAPCET, TS EAMCET, Unlimited Mock Test for each exam..

₹ 9999/- ₹ 2999/-
Buy Now
Knockout MHT CET 2022

An exhaustive program for the complete preparation of Physics Chemistry and Mathematics of MHT-CET exam, Adaptive Time Table, Chapterwise Questions, Concepts Flashcards for Quick and Effective Revision, Unlimited Chapter wise Subject wise and Full mock test for enhancing Speed & Accuracy,.

₹ 2999/- ₹ 1999/-
Buy Now
Boost your Preparation for JEE Main 2021 with Personlized Coaching
 
Exams
Articles
Questions