MCQ
$\text{A}\xrightarrow{\text{HCN}}\text{B}\xrightarrow{\text{H}_3\text{O}^-}\text{Lactic acid}$ Identify $A.$
- A$\text{HCHO}$
- ✓$\mathrm{CH}_3 \mathrm{CHO}$
- C$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CHO}$
- D$\mathrm{CH}_3 \mathrm{COCH}_3$
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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: $\log 3=0.477, \log 5=0.699$ ]