MCQ
Propene and propyne can be differentiated by :
- AConc. $H _2 SO _4$
- B$By Br _2$ and $CCl _4$
- ✓$By AgNO _3$ and $NH _4 OH$
- DBy Ozone
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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
$PC{l_5}\xrightarrow{\Delta }PC{l_3} + C{l_2}$