Q. When benzene sulphonic acid and p-nitrophenol are treated with $NaHCO_{3}$, the gases released respectively are
A) $SO_{2},\ NO_{2}$
B) $SO_{2},\ NO$
C) $SO_{2},\ CO_{2}$
D) $CO_{2},\ CO_{2}$
Explanation
(d)
Benzene sulphonic acid and p-nitro phenol react with $NaHCO_{3}$ and evolve $CO_{2}$ gas.
[image:11_image277.emf]
Because benzene sulphonic acid p-nitrophenol are stronger acids, so they are capable to evolve $CO_{2}$ with $NaHCO_{3}$.
$HCO_{3}^{-} + H^{+} \rightarrow H_{2}O + CO_{2} \uparrow$
acid
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.