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Grade 11Physical Chemistry

Give reasons for the following: (a) NO2 demerises to form N2O4 (b) ICl is more reactive than I2

Profile image of Jayant Kumar
12 Years agoGrade 11
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1 Answer

Profile image of Sunil Kumar FP
11 Years ago
(a)The monomer NO2exists in equilibrium with its dimer N2O4.On cooling the unpaired electrons of 2 NO2molecules combine together to form N-N bond in N2O4.204-1870_okhucgpp8090326987200751999.jpg
(b)ICl is more reactive than I2
This is because inter- halogen compounds are in general more reactive than halogens due to weaker inter- halogen X-X bond than X-X bond.

So, I2is more stable and less reactive than ICl.