$CuSO_4$ solution $+$ lime is called

Correlate the items listed in Column $I$ with those listed in Column $II$. Find out as many correlations as you can.

Column $I$	Column $II$
$A$. Synthesis gas	$1$. $Na_2[Na_4(PO_3)_6]$
$B$. Dihydrogen	$2$. Oxidising agent
$C$. Heavy water	$3$. Softening of water
$D$. Calgon	$4$. Reducing agent
$E$. Hydrogen peroxide	$5$. Stoichiometric compounds of $s-$block elements
$F$. Salt like hydrides	$6$. Prolonged electrolysis of water
	$7$. $Zn + NaOH$
	$8$. $Zn + dil. H_2SO_4$
	$9$. Synthesis of methanol
	$10$. Mixture of $CO$ and $H_2$

Consider the following statements:
$I$. Atomic hydrogen is obtained by passing an electric arc through hydrogen gas.
$II$. Hydrogen gas does not reduce heated aluminum oxide.
$III$. Finely divided palladium absorbs a large volume of hydrogen gas.
$IV$. Pure nascent hydrogen is obtained by the reaction of $Na$ with $C_2H_5OH$.
Which of the above statements are correct?

$H_2C_2O_4 \xrightarrow{\Delta } \text{gas } (A) + \text{gas } (B) + \text{liquid } (C)$.
$\text{Gas } (A) \text{ burns with a blue flame and is oxidised to gas } (B)$.
$\text{Gas } (A) + Cl_2 \to (D) \xrightarrow{NH_3, \Delta } (E)$.
$A, B, C \text{ and } E \text{ are}$

In which of the following reactions,$H_2$ is liberated?
$i$. $Al_{(s)} + HCl_{(aq)} \rightarrow$
$ii$. $Al_{(s)} + NaOH_{(aq)} \rightarrow$
$iii$. $B_2H_{6(g)} + H_2O_{(l)} \rightarrow$
$iv$. $F_{2(g)} + H_2O_{(l)} \rightarrow$

Match the following columns:

Column-$I$	Column-$II$
$(i)$ Hydrogen peroxide	$(a)$ Used as air purifier in submarines
$(ii)$ Calcium sulphate hemihydrate	$(b)$ Used for water softening
$(iii)$ Potassium superoxide	$(c)$ Antiseptic
$(iv)$ Calgon	$(d)$ Plaster of Paris