Total number of possible isomers (both structural as well as stereoisomers) of cyclic ethers with the molecular formula $C_4H_8O$ is:

Match List-$I$ with List-$II$ :

List-$I$	List-$II$
$A$. $H_{3}C-CH(OH)-CH_{3}$	$I$. $(i)$ oleum; (ii) $NaOH, \Delta$; (iii) $H^{+}$
$B$. $CH_{3}COOH \rightarrow CH_{3}CH_{2}OH$	$II$. $(i)$ $O_{2}$; (ii) $H_{2}O/H^{+}$
$C$. $CH_{3}CH_{2}OH \rightarrow H_{3}C-CH(OH)-CH_{3}$	$III$. $(i)$ $CH_{3}OH, H^{+}$; (ii) $H_{2}$, Catalyst
$D$. Benzene $\rightarrow$ Phenol	$IV$. $(i)$ conc. $H_{2}SO_{4}, \Delta$; (ii) $H^{+}/H_{2}O$

Choose the correct answer from the options given below :

The correct order of boiling point is $:-$

$1.12 \, mL$ of a gas is produced at $STP$ by the action of $4.12 \, mg$ of alcohol with methyl magnesium iodide. The molecular mass of the alcohol is:

An alcohol $X \left( C_5 H_{12} O \right)$ produces turbidity instantly with conc. $HCl / ZnCl_2$. Isomer $(Y)$ of $X$ undergoes dehydration with conc. $H_2 SO_4$ at $443 \ K$. $X$ and $Y$ respectively are

Match the structures in Column-$I$ with their common names in Column-$II$ and $\text{IUPAC}$ names in Column-$III$.

Column-$I$	Column-$II$	Column-$III$
$(A) \ HO-CH_2-CH_2OH$	$(1) \ \text{sec-Butyl alcohol}$	$(i) \ \text{Ethane-1,2-diol}$
$(B) \ CH_3-CH(OH)-CH_2CH_3$	$(2) \ \text{Isopropyl alcohol}$	$(ii) \ \text{2,2-Dimethylpropan-1-ol}$
$(C) \ CH_3-CH(OH)-CH_3$	$(3) \ \text{Ethylene glycol}$	$(iii) \ \text{Butan-2-ol}$
$(D) \ (CH_3)_3C-CH_2OH$	$(4) \ \text{Neopentyl alcohol}$	$(iv) \ \text{Propan-2-ol}$