Which of the following can not react with $NaHCO_3$?

The nitration of phenol with dilute $HNO_3$ at low temperature yields a mixture of two isomers $(A)$ and $(B)$. Product $(A)$ is more volatile than product $(B)$. Identify $(A)$.

The order of reactivity of phenol $(I)$,nitrobenzene $(II)$,and benzene $(III)$ towards nitration is:

$C_6H_6 + CH_3-CH=CH_2$ $\xrightarrow{H_3PO_4} A$ $\xrightarrow{O_2, \text{heat}} B$ $\xrightarrow{\text{dil. } H_2SO_4} C + D$. $A, C$ and $D$ are:

Which of the following compounds is least likely to give effervescence of $CO_2$ in the presence of aqueous $NaHCO_3$?

In the Liebermann nitroso reaction,what is the sequence of color changes in phenol?