The increasing order of the acidity of the $\alpha$-hydrogen of the following compounds is:

Identify products $A$ and $B$ in the following reaction:
$R-COOR' \xrightarrow[\text{dry ether}]{LiAlH_4} A + B$

$R-COOH \xrightarrow{\text{Reagent}} R-CH_2-OH$
The suitable reagent for the above conversion is:

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?

Sodium ethoxide reacts with ethanoyl chloride. The compound that is produced in the above reaction is:

What is the order of reactivity of the following compounds towards sodalime decarboxylation?
$(i)$ $m$-nitro-phenylacetic acid
(ii) $p$-nitro-phenylacetic acid
(iii) $p$-methoxy-phenylacetic acid
(iv) $p$-methyl-phenylacetic acid