MCQ
Which has the lowest boiling point
- A$N{H_3}$
- ✓$P{H_3}$
- C$As{H_3}$
- D$Sb{H_3}$
| Hydride | $N{H_3}$ | $P{H_3}$ | $As{H_3}$ | $Sb{H_3}$ | $Bi{H_3}$ |
| Boling point | $238.5$ | $185.5$ | $10.6$ | $254.6$ | $290$ |
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| Acid | $K_a$ |
| $HCN$ | $6.2\times 10^{-10}$ |
| $HF$ | $7.2\times 10^{-4}$ |
| $HNO_2$ | $4.0\times 10^{-4}$ |
Correct order of increasing base strength of the base $CN^-,F^-$ and $NO_2^-$ will be