The amount of ammonium sulphate required for the preparation of $1 \, M$ solution in $2 \, L$ is ............ $gm$.

$6 \ g$ of urea (molar mass $= 60 \ g \ mol^{-1}$) and $9 \ g$ of glucose (molar mass $= 180 \ g \ mol^{-1}$) were dissolved in $35 \ g$ of water. The mass percent of urea and glucose is respectively:

Molarity of a solution prepared by dissolving $75.5 \ g$ of pure $KOH$ in $540 \ mL$ solution is .......... $M$

The normality of a solution of sodium hydroxide,$100 \ mL$ of which contains $4 \ g$ of $NaOH$,is:

The concentration of $1 \ L$ of $CaCO_3$ solution is $1000 \ ppm$. What is its concentration in $mol \ L^{-1}$ ?
$(Ca=40 \ u, O=16 \ u, C=12 \ u)$

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

List-$I$ (Example)	List-$II$ (Type of Solution)
$A$. Humidity	$I$. Solid in solid
$B$. Alloys	$II$. Liquid in gas
$C$. Amalgams	$III$. Solid in gas
$D$. Smoke	$IV$. Liquid in solid

Choose the correct answer from the options given below: