MCQ
The incorrect order is
- AThermal stability : $HF > HCl > HBr$
- BLewis basic character: $PF_3 < PCl_3 < PBr_3$
- ✓$\%\, p-$ character : $NO_2^+ > NO_3^- > NH_4^+$
- DBond angle : $NH_3 > PH_3 > AsH_3$
✓
Answer
Correct option: C.
$\%\, p-$ character : $NO_2^+ > NO_3^- > NH_4^+$
c
Properties of hydrogen halides:-
Properties of hydrogen halides:-
Thermal stability: $HF\, >\, HCl\, > \,HBr \,> \,HI$
The decrease in thermal stability is due to decrease in bond dissociation enthalpy.
$\Delta_{\text {diss }} H :- HF \,>\, HCl\, > \,HBr \,>\, HI$
Bond angle: $NH _3\,>\, PH _3\,>\, AsH _3$
Lewis basic character: $PF _3\,<\, PCl _3\,<\, PBr _3$
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