What is $Cresol$?

Match the items given in column $-I$ with the items given in column $-II$.

column $-I$	column $-II$
$(A)$ Antifreeze used in car engine	$(1)$ Neutral $FeCl_3$
$(B)$ Solvent used in perfumes	$(2)$ Glycerol
$(C)$ Starting material for picric acid	$(3)$ Methanol
$(D)$ Wood spirit	$(4)$ Phenol
$(E)$ Reagent used for detection of phenolic group	$(5)$ Ethylene glycol
$(F)$ By-product of soap industry used in cosmetics	$(6)$ Ethanol

When a mixture of ethanol and methanol is heated in the presence of concentrated $H_2SO_4$,the resulting organic product or products is/are:

Which of the following reactions will yield $2-propanol$? Select the correct answer from $a, b, c$ and $d$.
$I. \, CH_2 = CH - CH_3 + H_2O \xrightarrow{H^+} $
$II. \, CH_3 - CHO \xrightarrow[(ii) \, H_2O]{(i) \, CH_3MgI} $
$III. \, CH_2O \xrightarrow[(ii) \, H_2O]{(i) \, C_2H_5MgI} $
$IV. \, CH_2 = CH - CH_3 \xrightarrow{KMnO_4} $

What is $Z$ in the following sequence of reaction?
$Z$ $\xrightarrow{PCl_5} X$ $\xrightarrow{Alc. KOH} Y$ $\xrightarrow{dil. H_2SO_4} Z$

$A$ new carbon-carbon bond formation is possible in