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# In the following reaction;

Question:

In the following reaction; $\mathrm{xA} \rightarrow \mathrm{yB}$

$\log _{10}\left[-\frac{\mathrm{d}[\mathrm{A}]}{\mathrm{dt}}\right]=\log _{10}\left[\frac{\mathrm{d}[\mathrm{B}]}{\mathrm{dt}}\right]+0.3010$

'A' and 'B' respectively can be :

1. n-Butane and Iso-butane

2. $\mathrm{C}_{2} \mathrm{H}_{4}$ and $\mathrm{C}_{4} \mathrm{H}_{8}$

3. $\mathrm{N}_{2} \mathrm{O}_{4}$ and $\mathrm{NO}_{2}$

4. $\mathrm{C}_{2} \mathrm{H}_{2}$ and $\mathrm{C}_{6} \mathrm{H}_{6}$

Correct Option: , 2

Solution: