$1.12 \, mL$ 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:

$1^o, 2^o, 3^o$ alcohols are distinguished by

Match the reactions given in Column-$I$ with the names of the products and reactions given in Column-$II$.

Column-$I$ (Reaction)	Column-$II$ (Product and Reaction Name)
$A$. Phenol $+$ dilute $HNO_3$	$i$. Mononitrophenol,Nitration
$B$. Phenol $+$ Bromine water	$ii$. $2,4,6$-Tribromophenol,Bromination
$C$. Phenol $+$ $Na_2Cr_2O_7/H_2SO_4$	$iii$. Benzoquinone,Oxidation
$D$. Sodium phenoxide $+$ $CO_2$ followed by $H^+$	$iv$. Salicylic acid,Kolbe reaction

Which of the following compounds has the most acidic hydrogen?

Match List-$I$ with List-$II$.

List-$I$ (Test)	List-$II$ (Observation)
$A$. $Br_2$ water test	$I$. Yellow orange or orange red precipitate formed
$B$. Ceric ammonium nitrate test	$II$. Reddish orange colour disappears
$C$. Ferric chloride test	$III$. Red colour appears
$D$. $2,4-DNP$ test	$IV$. Blue,Green,violet or Red colour appear

Choose the correct answer from the options given below:

Arrange the following compounds in the increasing order of polarity:
$A. CH_3CH_2OCH_2CH_3$
$B. CH_3CH_2OH$
$C. CH_3COCH_3$
$D. CH_3COOH$
Choose the correct answer from the options given below: