The reaction between acetic acid and ammonia gives

Which one is the strongest acid?

How many organic products will be formed when the following compound undergoes decarboxylation?
(Image: $A$ substituted cyclopentane ring with two $-COOH$ groups at the same carbon atom,and two $-CH_3$ groups at adjacent carbons.)

What are $X$ and $Y$ in the following set of reactions?

Name the end product in the following series of reactions:
$CH_3COOH$ $\xrightarrow{NH_3} A$ $\xrightarrow[P_2O_5]{\Delta} B$

Which among the following reagents forms alcohol when reacted with $R-COOH$?