Identify the final product $(D)$ in the following reaction sequence:
Phthalic anhydride $\xrightarrow{PCl_5} (A)$ $\xrightarrow{LiAlH_4} (B)$ $\xrightarrow{PCC} (C)$ $\xrightarrow{HO^-, \Delta} (D)$

Identify $Z$ in the following reaction sequence:
$CH_3COONH_4$ $\xrightarrow{\Delta} X$ $\xrightarrow{P_2O_5} Y$ $\xrightarrow{H_2O/H^+} Z$

The final product $(III)$ obtained in the reaction sequence is:
$CH_3-CH_2-COOH$ $\xrightarrow{PCl_3} I$ $\xrightarrow{C_6H_6/AlCl_3} II$ $\xrightarrow{NH_2-NH_2/\text{base/heat}} III$

The product of the following reaction is :

Esterification (shown below) is a reaction converting a carboxylic acid to its ester. It involves only the carbonyl carbon. Esterification of $(-)$ lactic acid with methanol yields $(+)$ methyl lactate. Assuming that there are no side reactions,what is true about this reaction?

Acid hydrolysis of $X$ yields two different organic compounds. Which one of the following is $X$?