Which reagent is required to convert cyclohexanol to cyclohexanone?

Lucas test is associated with

An alcohol having molecular weight $74$ gives white turbidity with Lucas reagent within $5-10$ minutes. It reacts with sodium metal to give $Y$. $Y$ reacts with $CH_3-Br$ to give $Z$. $Z$ is:

Identify the product $B$ in the following sequence of reactions:
$CH_3-CH_2-CH_2-OH$ $\xrightarrow[623 \ K]{Al_2O_3} A$ $\xrightarrow[(ii) H_2O, \Delta]{(i) conc. H_2SO_4} B$

The compound on dehydrogenation gives a ketone. The original compound is

Consider the following reaction sequence:
$\text{Cyclohexanol}$ $\xrightarrow{CrO_3} A$ $\xrightarrow{CH_3MgBr / H^+, H_2O} B$ $\xrightarrow{H_2SO_4, \Delta} C$ $\xrightarrow{B_2H_6, H_2O_2, OH^-} D$
Identify the final product $D$.