What is the reactant [X] which produces cyclohexanone and formaldehyde on reaction with HIO₄ ?

Two compounds $\mathrm{A}$ and $\mathrm{B}$ with same molecular formula $\left({\mathrm{C}}_3{\mathrm{H}}_6\mathrm{O}\right)$ undergo Grignard reaction with methylmagnesium bromide to give products $\mathrm{C}$ and $\mathrm{D}$. Products $\mathrm{C}$ and $\mathrm{D}$ show following chemical tests.

$\mathrm{C}$ and $\mathrm{D}$ respectively are

The major product of the following reaction is

Identify $\mathrm{X}$ and $\mathrm{Y}$ in the following reactions

$\mathrm{R}-\mathrm{CH}=\mathrm{CH}-{\mathrm{CH}}_2\mathrm{OH}\stackrel{\mathrm{X}}{\to }\mathrm{R}-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO}$
$\mathrm{R}-{\mathrm{CH}}_2\mathrm{OH}\stackrel{\mathrm{Y}}{⟶}\mathrm{R}-\mathrm{COOH}$

Identify $"\mathrm{Z}"$ in the following series of reaction

$\mathrm{Butan}-2-\mathrm{ol}\stackrel{{\mathrm{PCl}}_3}{⟶}\mathrm{X}\stackrel{ \mathrm{alco}.\mathrm{KOH} }{⟶}\mathrm{Y}\underset{\mathrm{ii})\mathrm{H}-\mathrm{OH}/\mathrm{heat} }{\overset{ \mathrm{i}) {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}\mathrm{Z}$

The reactant ' ${\mathrm{P}}^{\text{'}}$ in the following reaction is

Which of following alcohols gives white turbidity almost immediately with the Lucas reagent at room temperature?

(i) $\mathrm{n}$-Butanol

(ii) tertiary-Butanol

(iii) Benzyl alcohol

(iv) Allylic alcohol

What is B in the above scheme?

Identify A and B respectively in the following reaction:

$\mathrm{tert}-\mathrm{butyl} \mathrm{alcohol} \underset{363 \mathrm{K}}{\overset{20\% {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}\mathrm{A}+{\mathrm{H}}_2\mathrm{O}\underset{{\mathrm{H}}_2{\mathrm{O}}_2}{\overset{\mathrm{HBr}}{\to }}\mathrm{B}$