When compound $A$ reacts with methyl alcohol in the presence of a few drops of $H_2SO_4$,it forms oil of wintergreen. What is compound $A$?

Assign the structure of the major product $(X)$ of the reaction given below:
$C_6H_5-CH(OH)-COOH$ $\xrightarrow{CH_3CH_2OH, HCl(g), \Delta}$ $\xrightarrow{SOCl_2, \Delta} (X)$

The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of

The compounds that produce $CO_2$ with aqueous $NaHCO_3$ solution are:
$A$. Benzoic acid
$B$. Phenol
$C$. $2,4,6$-Trinitrophenol (Picric acid)
$D$. Cyclohexanecarboxylic acid
$E$. $4$-Methoxyphenol
Choose the correct answer from the options given below:

Assertion : The acetate ion is resonance stabilized.
Reason : Acetate ion is more basic than the methoxide ion.

The reaction $CH_3COOAg + Br_2 \xrightarrow{CS_2}$ is known as the Hunsdiecker reaction. What is the main product of this reaction?