In the reaction $HCOOH \xrightarrow{H_2SO_4} CO + H_2O$,$H_2SO_4$ acts as:

Identify the product obtained when an acyl chloride undergoes hydrolysis.

What are the organic products formed in the following reaction?
$C_6H_5-COOCH_3$ $\xrightarrow{1. LiAlH_4}$ $\xrightarrow{2. H_2O}$

Which acid is the strongest?

Which of the following is the most acidic substance?

Consider the acidity of the following carboxylic acids:
$(I)$ $PhCOOH$
$(II)$ $o-NO_2C_6H_4COOH$
$(III)$ $p-NO_2C_6H_4COOH$
$(IV)$ $m-NO_2C_6H_4COOH$
Which of the following is the correct order of acidity?