The alkaline hydrolysis of ester is known as

The highest electrical conductivity of the following aqueous solutions is of

The number of moles $(x)$ of Grignard reagent $(CH_3MgI)$ consumed in the reaction of dimethyl phthalate with excess $CH_3MgI$ followed by acidic workup $(H^+)$ to form the product is:

$C_6H_5COCl + C_6H_5COONa \xrightarrow{\Delta} \text{ . . . . . . }$.

What is the correct order of acidity of compounds $(I)$,$(II)$,and $(III)$?
$(I)$ $4$-Nitrobenzoic acid
$(II)$ $4$-Methoxybenzoic acid
$(III)$ Benzoic acid

$CH_2=CH-CO-OCH_3$ (methyl acrylate,bp $81^\circ C$) + $CH_3-CH_2-CH_2-CH_2-OH$ (n-butyl alcohol,bp $117^\circ C$) $\xrightarrow{TsOH, \Delta} (A)$ (bp $145^\circ C$) + $CH_3OH$ (bp $65^\circ C$). Product $(A)$ of the above reaction is: