| $a. CO_{(g)} + H_{2(g)}$ | $i. Mg(HCO_3)_2 + Ca(HCO_3)_2$ |
| $b. \text{Temporary hardness of water}$ | $ii. \text{An electron deficient hydride}$ |
| $c. B_2H_6$ | $iii. \text{Synthesis gas}$ |
| $d. H_2O_2$ | $iv. \text{Non-planar structure}$ |
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| Column-$I$ | Column-$II$ |
| $A$. $H$ | $1$. Used in the name of perhydrol. |
| $B$. $H_2$ | $2$. Can be reduced to dihydrogen by $NaH$. |
| $C$. $H_2O$ | $3$. Can be used in hydroformylation of olefin. |
| $D$. $H_2O_2$ | $4$. Can be used in cutting and welding. |
| List-$I$ | List-$II$ |
|---|---|
| $I$. $H_2O_2$ | $P$. $Mg(HCO_3)_2 + Ca(OH)_2 \rightarrow$ |
| $II$. $Mg(OH)_2$ | $Q$. $BaO_2 + H_2SO_4 \rightarrow$ |
| $III$. $BaCl_2$ | $R$. $Ca(OH)_2 + MgCl_2 \rightarrow$ |
| $IV$. $CaCO_3$ | $S$. $BaO_2 + HCl \rightarrow$ |
| $T$. $Ca(HCO_3)_2 + Ca(OH)_2 \rightarrow$ |
| Column $-A$ | Column $-B$ |
| $(1).$ Calgon | $(a).$ $D_2O$ |
| $(2).$ Perhydrol | $(b).$ Zeolite |
| $(3).$ Heavy water | $(c).$ Sodium hexametaphosphate |
| $(4).$ Aluminosilicate | $(d).$ Commercial name of Hydrogen peroxide |
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