MCQ
When fluoride is heated with conc. ${H_2}S{O_4}$ and $Mn{O_2}$ the gas evolved is
- A${F_2}$
- B$SF$
- ✓$HF$
- DNone
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| Compound | $K_{sp}$ |
| $AgCl$ | $1.1\times10^{-10}$ |
| $AgI$ | $1.0\times10^{-16}$ |
| $PbCrO_4$ | $4.0\times10^{-14}$ |
| $Ag_2CO_3$ | $8.0\times10^{-12}$ |
The most soluble and least soluble compounds are respectively.