Phenol on treatment with ${\mathrm{CO}}_2$ in the presence of $\mathrm{NaOH}$ followed by acidification produces compound $\mathrm{X}$ as the major product. X on treatment with ${\left(\mathrm{C}{\mathrm{H}}_3\mathrm{C}\mathrm{O}\right)}_2\mathrm{O}$ in the presence of catalytic amount of ${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4$ produces

Acid strength given below the correct decreasing order will be :

Give the chemical equation for the reaction of ${\mathrm{CH}}_3\mathrm{COOH}$ with following:

${\mathrm{LiAlH}}_4$

The decreasing order of ease of alkaline hydrolysis for the following esters is