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

The desired product $X$ $(\text{Ph-C(Me)(Ph)-COOH})$ can be prepared by reacting the major product of the reactions in List-$I$ with one or more appropriate reagents in List-$II$. (Given,order of migratory aptitude: $\text{aryl} > \text{alkyl} > \text{hydrogen}$)
| List-$I$ | List-$II$ |
| :--- | :--- |
| $P$. $\text{Ph}_2\text{C(OH)-C(OH)Me}_2 + \text{H}_2\text{SO}_4$ | $1$. $\text{I}_2, \text{NaOH}$ |
| $Q$. $\text{Ph}_2\text{C(NH}_2\text{)-CH(OH)Me} + \text{HNO}_2$ | $2$. $[\text{Ag(NH}_3)_2]\text{OH}$ |
| $R$. $\text{PhC(OH)(Me)-C(OH)(Ph)Me} + \text{H}_2\text{SO}_4$ | $3$. $\text{Fehling solution}$ |
| $S$. $\text{Ph}_2\text{C(Br)-CH(OH)Me} + \text{AgNO}_3$ | $4$. $\text{HCHO, NaOH}$ |
| | $5$. $\text{NaOBr}$ |

Which is the major product of the following reaction?

Select the reaction with an incorrect name.

Match Column-$I$ with Column-$II$ based on the $pK_a$ values of the given carboxylic acids:

Column-$I$	Column-$II$
$(A)$ $CF_3COOH$	$(i)$ $3.41$
$(B)$ Benzoic acid	$(ii)$ $4.76$
$(C)$ $CH_3COOH$	$(iii)$ $0.23$
$(D)$ $4$-nitrobenzoic acid	$(iv)$ $4.20$

Which is the major product of the following reaction?