MHT CET20243 May 2024Evening ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual
Identify the correct decreasing order of thermal stability from following. [Note: The question has been modified to get the correct answer.]
Options
- AClF ICl IBr BrCl
- BBrCl IBr ICl ClF
- CClF IBr BrCl ICl
- DClF BrCl IBr ClF
Correct answer
A. ClF ICl IBr BrCl
Step-by-step solution
The thermal stability of interhalogen compounds depends upon the electronegativity of the combining atoms. ( array |l|c|c|c|c| Elements & F & Cl & Br & I Electronegativity & 4.0 & 3.2 & 3.0 & 2.7 array ) More the difference between the electronegativity the combining atoms, more is the thermal stability. Hence the order of thermal stability is ( ClF > ICl > IBr > BrCl ).