MCQ
The $O-N-O$ angle is maximum in
- A$NO_3^ - $
- B$NO_2^ - $
- C$N{O_2}$
- ✓$NO_2^ + $
increase of electron or increase of more electronegative atom in it decrease its bond angle since $NO_2^ + $ loose a electron by which its bond angle increase from $132^o$.
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In the above first order reaction the initial concentration of $\mathrm{N}_{2} \mathrm{O}_{5}$ is $2.40 \times 10^{-2}\, \mathrm{~mol} \,\mathrm{~L}^{-1}$ at $318 \,K.$ The concentration of $\mathrm{N}_{2} \mathrm{O}_{5}$ after $1\, hour$ was $1.60 \times 10^{-2}\, \mathrm{~mol} \,\mathrm{~L}^{-1}$, The rate constant of the reaction at $318\, \mathrm{~K}$ is $.....\,\times 10^{-3} \mathrm{~min}^{-1}$. (Nearest integer)
[Given: $\log 3=0.477, \log 5=0.699$ ]