Hydrogen chloride gas ($M_r$: HCl, $36.5$) is released at P in the apparatus illustrated. The universal indicator paper changes to red after $38\,\text{s}$. The experiment is carried out again using sulfur dioxide gas ($M_r$: $\text{SO}_2$, $64$). What outcome is obtained for sulfur dioxide gas?
- Auniversal indicator paper turns blue; time for universal indicator paper to change colour is $26\,\text{s}$
- Buniversal indicator paper turns blue; time for universal indicator paper to change colour is $51\,\text{s}$
- Cuniversal indicator paper turns red; time for universal indicator paper to change colour is $26\,\text{s}$
- Duniversal indicator paper turns red; time for universal indicator paper to change colour is $51\,\text{s}$