MCQ
Noble gases are absorbed by
- Aanhydrous calcium chloride
- Bferric hydroxide
- Cconc. $H_2SO_4$
- ✓activated coconut charcoal
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| List $I$ | List $II$ |
| $A$ van't Hoff factor, $i$ | $I$ Cryoscopic constant |
| $B$ $k _{ f }$ | $II$ Isotonic solutions |
| $C$ Solutions with same osmotic pressure | $III$ $\frac{Normal\,molar\,mass}{Abnormal\,molar\,mass}$ |
| $D$ Azeotropes | $IV$ Solutions with same composition of vapour above it |
Choose the correct answer from the options given below :
What is $A$