LIVE Course for free

Rated by 1 million+ students
Get app now
+2 votes
in Chemistry by (29.8k points)

Describe the change in hybridisation (if any) of the Al atom in the following reaction. 

2 Answers

+1 vote
by (128k points)
selected by
Best answer

The valence orbital picture of aluminium in the ground state can be represented as:

 The orbital picture of aluminium in the excited state can be represented as:

 Hence, it undergoes sp2 hybridization to give a trigonal planar arrangement (in AlCl3). To form AlCl4 – , the empty 3pz orbital also gets involved and the hybridization changes from sp2 to sp3 . As a result, the shape gets changed to tetrahedral. 

+1 vote
by (2.4k points)
Sp2 to Sp3 ....

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.