Benzene diazonium chloride when warmed with water gives a compound, whose Sodium salt when reacted with Allyl bromide gives compound $[\mathrm{X}]$. Identify $[\mathrm{X}]$.

Cyclohexanol undergoes a series of reactions as given. Identify compound (iv).

$\mathrm{C}_6 \mathrm{H}_{11} \mathrm{OH}+\mathrm{CrO}_3 \rightarrow(\mathrm{i})+\mathrm{C}_6 \mathrm{H}_5 \mathrm{MgI} \rightarrow(\mathrm{ii})+$ dil. $\mathrm{HCl} \rightarrow(\mathrm{iii})+$ Conc. $\mathrm{H}_3 \mathrm{PO}_4 \rightarrow(\mathrm{iv})$

4 statements are given below. Identify the incorrect statement

A. Phenol has lower $$\mathrm{pK}_{\mathrm{a}}$$ value than $$\mathrm{p}$$-cresol

B. 2-Chlorophenol is more acidic than phenol

C. Ortho and para nitrophenols can be separated by steam distillation since $$\mathrm{p}$$-Nitrophenol is more steam volatile than o-Nitrophenol

D. Phenol on reaction with $$\frac{\mathrm{Cr}_2 \mathrm{O}_7^{2-}}{\mathrm{H}^{+}}$$ yields a conjugated diketone

Two statements, Assertion and Reason are given below. Choose the correct option.

Assertion: n-propyl tert-butyl ether can be readily prepared in the laboratory by Williamson's synthesis.

Reason: The reaction occurs by $$\mathrm{S}_{\mathrm{N}} 1$$ attack of Primary alkoxide on Tert-alkyl halide to give good yield of the product, n-propyl tert-butyl ether.