MCQ
What is $'A'$ in the following reaction


- A

- B

- C

- ✓







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$(A)$ A secondary alcohol on oxidation gives a ketone
$(B)$ Ethanol reacts with conc. ${H_2}S{O_4}$ at ${180\,^o}C$ to yield ethylene
$(C)$ Methanol reacts with iodine and sodium hydroxide to give a yellow precipitate of iodoform
$(D)$ Hydrogen gas is liberated when sodium is added to alcohol. Select the correct statements from the above set:
$(a)$ $X < Y < Z$ $(b) X < Z < Y$
$(c) Y < Z < X$ $(d) Z < Y < X$
Phenol $\xrightarrow{{Zn\,\,dust}}X\,\xrightarrow[{Anhyd.\,AlC{l_3}}]{{C{H_3}Cl}}\,Y\xrightarrow{{Alkaline\,\,KMn{O_4}}}\,Z$
the product $Z$ is