| List-$I$ | List-$II$ |
|---|---|
| $A$. Chlorophyll | $I$. $Na_2CO_3$ |
| $B$. Soda ash | $II$. $CaSO_4$ |
| $C$. Dentistry,Ornamental work | $III$. $Mg^{2+}$ |
| $D$. Used in white washing | $IV$. $Ca(OH)_2$ |
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| Column-$I$ | Column-$II$ |
| $A$. $Li$ | $1$. Insoluble sulphate |
| $B$. $Na$ | $2$. Strongest monoacidic base |
| $C$. $Ca$ | $3$. Most negative $E^{\circ}$ cell value among alkali metals |
| $D$. $Ba$ | $4$. Insoluble oxalate |
| $5$. $6s^2$ outer electronic configuration |
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