The correct order of thermal stability of halogen halides is:
A
HF>HCl>HBr>HI
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
HI>HBr>HCl>HF
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
HI>HCl<HF<HBr
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
HCl<HF<HBr<HI
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is AHF>HCl>HBr>HI On moving down the group, the bond dissociation enthalpy (ΔdissH) of H−X bond (where X=F,Cl,Br,I) decreases and hence thermal stability also decreases. Therefore, the correct order of thermal stability of hydrogen halides is: HF>HCl>HBr>HI