Sarthaks Test
0 votes
2.6k views
in Chemistry by (38.1k points)

Give reason to explain why ClF3 exists but FCl3 does not exist.

2 Answers

0 votes
by (63.6k points)
selected by
 
Best answer
Because fluorine is more electronegative as compared to chlorine.
0 votes
by (3.8k points)

There are particularly two reasons:

  1. Cl is a big atom and F is small. So while Cl can hold 3 F atoms but F cannot do the same.
  2. Cl has d orbitals while F does not. Note that all halogens have p-5 configuration so for higher valency each atom should unpair its paired electrons and promote it to d orbital. In absence of so, F can't show any valency of more than 1 causing non formation of FCl3.

Related questions

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.

Categories

...