Identify $B$ and $D$ in the following sequence of reactions.

Match the reactants in Column-$I$ with the products formed in Column-$II$.

Column-$I$ (Reactants)	Column-$II$ (Products)
$A$. Cumene $+ O_2$	$i$. Phenol
$B$. Benzene sulphonic acid $\xrightarrow{NaOH, H^+}$	$ii$. $2$-Methylbutan-$1$-ol
$C$. Chlorobenzene $+ NaOH \xrightarrow{623 \ K, 300 \ atm}$	$iii$. Cumene hydroperoxide
$D$. $2$-Methylbutanal $\xrightarrow{NaBH_4}$	$iv$. Sodium phenoxide

Match each of the compounds given in Column $I$ with the reaction$(s)$ that they can undergo,given in Column $II$.
| Column $I$ | Column $II$ |
| :--- | :--- |
| $(A)$ $3-$bromobenzofuran derivative | $(p)$ Nucleophilic substitution |
| $(B)$ Benzyl alcohol | $(q)$ Elimination |
| $(C)$ Salicylaldehyde | $(r)$ Nucleophilic addition |
| $(D)$ $1-$bromo$-2-$nitrobenzene | $(s)$ Esterification with acetic anhydride |
| | $(t)$ Dehydrogenation |

When phenol is treated with $CHCl_3$ and $NaOH$ followed by acidification,salicylaldehyde is produced. Which of the following intermediates is involved in the above reaction?

Match the reactions given in Column-$I$ with the conditions given in Column-$II$.

Column-$I$ (Reaction)	Column-$II$ (Condition)
$(A)$ $CH_3-CH(OH)-CH_3 \rightarrow CH_3-CH=CH_2$	$(i)$ $20\% \ H_3PO_4, 358 \ K$
$(B)$ $CH_3-C(CH_3)_2-OH \rightarrow CH_3-C(CH_3)=CH_2$	(ii) $Cu, 573 \ K$
$(C)$ $CH_3CH_2OH \rightarrow CH_2=CH_2 + H_2O$	(iii) $85\% \ H_3PO_4, 440 \ K$
$(D)$ $R-CH(OH)-R' \rightarrow R-CO-R'$	(iv) $H_2SO_4, 443 \ K$

Match the structures in Column-$I$ with their common names in Column-$II$ and $\text{IUPAC}$ names in Column-$III$.

Column-$I$	Column-$II$ (Common Name)	Column-$III$ ($\text{IUPAC}$ Name)
$(A)$ Phenol	$(1)$ Resorcinol	$(i)$ Benzene$-1,2-$diol
$(B)$ Benzene$-1,3-$diol	$(2)$ Catechol	(ii) Phenol
$(C)$ Benzene$-1,2-$diol	$(3)$ Phenol	(iii) Benzene$-1,4-$diol
$(D)$ Benzene$-1,4-$diol	$(4)$ Hydroquinone	(iv) Benzene$-1,3-$diol