MCQ
Soda-lime is a mixture of ________ .
- A$NaOH + CaCl _2$
- B$NaOH + CaCO _3$
- ✓$NaOH + CaO$
- D$NaOH + Al _2 O _3$
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| Soluble Salts | Acid | Insoluble salt | |
| W | $Pb \left( NO _3\right)_2$ | $H _2 SO _4$ | $PbSO _4$ |
| X | $BaCl _2$ | $H _2 SO _4$ | $BaSO _4$ |
| Y | $CaCl_2$ | $H _2 SO _4$ | $CaSO _4$ |
| Z | $NaNO _3$ | $H _2 SO _4$ | $NaHSO _4$ |