MCQ
The oxide without nitrogen-nitrogen bond is :
- A$\mathrm{N}_{2} \mathrm{O}$
- B$\mathrm{N}_{2} \mathrm{O}_{4}$
- C$\mathrm{N}_{2} \mathrm{O}_{3}$
- ✓$\mathrm{N}_{2} \mathrm{O}_{5}$

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$H _{2( g )}+ Br _{2( g )} \rightarrow 2 HBr _{( g )}$
Given that bond energy of $H _{2}$ and $Br _{2}$ is $435 \;kJ mol ^{-1}$ and $192 \;kJ mol^{-1}$, respectively, what is the bond energy (in $kJ mol ^{-1}$ ) of $HBr?$