In the given reaction,$[X]$ will be:

What is the correct order of acidic strength for the following compounds: $(a)$ Phenol,$(b)$ $p$-methylphenol,$(c)$ $p$-methylbenzoic acid,and $(d)$ Benzoic acid?

$CH_3-CO-CH_2-COOC_2H_5 \xrightarrow{NaOH, H_2O} A$. The product '$A$' in the reaction is

In Column - $I$ the structure of the compound is given,in Column - $II$ the boiling point,and in Column - $III$ the functional group is given. Find the correct match for Column - $I$ from Column - $II$ and Column - $III$.

Column - $I$ (Formula)	Column - $II$ (Boiling Point)	Column - $III$ (Group)
$(A)$ $CH_3COOH$	$(i)$ $309 \ K$	$(m)$ Alkane
$(B)$ $CH_3CH_2CH_2OH$	$(ii)$ $322 \ K$	$(n)$ Ketone
$(C)$ $CH_3COCH_3$	$(iii)$ $329 \ K$	$(o)$ Aldehyde
$(D)$ $CH_3CH_2CHO$	$(iv)$ $391 \ K$	$(p)$ Carboxylic acid
$(E)$ $CH_3CH_2CH_2CH_2CH_3$	$(v)$ $370 \ K$	$(q)$ Alcohol

$CH_3-C(=O)-OH$ $\xrightarrow{NaH^{14}CO_3} (A) (\text{gas})$ $\xrightarrow[(ii) H_3O^{+}]{(i) PhMgBr} (B)$
$CH_3-S(=O)_2-OH$ $\xrightarrow{NaH^{14}CO_3} (C) (\text{gas})$ $\xrightarrow[(ii) H_3O^{+}]{(i) PhMgBr} (D)$
Product $(B)$ and $(D)$ in the above reaction are:

The conversion of $CH_{3}CH_{2}COOH$ to the product shown below can be accomplished by:
$CH_{3}CH_{2}CH(OCH_{2}CH_{2}O)$