MCQ
Acetic acid is manufactured by the fermentation of
- ✓Ethanol
- BMethanol
- CEthanal
- DMethanal
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$\mathrm{A}(\mathrm{g}) \rightarrow 2 \mathrm{~B}(\mathrm{~g})+\mathrm{C}(\mathrm{g})$
| S.No | Time/s | Total Pressure/(atm) |
| $1.$ | $0$ | $0.1$ |
| $2.$ | $115$ | $0.28$ |
The rate constant of the reaction is_____$\times 10^{-2} \mathrm{~s}^{-1}$ (nearest integer)

Assertion $A:$ $3.1500\,g$ of hydrated oxalic acid dissolved in water to make $250.0\,mL$ solution will result in $0.1\,M$ oxalic acid solution.
Reason $R:$ Molar mass of hydrated oxalic acid is $126\,g\,mol ^{-1}$.
In the light of the above statements, chose the correct answer from the options given below: