MCQ
Which of the following is most acidic
- APhenol
- BBenzyl alcohol
- ✓$m-$ chlorophenol
- DCyclohexanol
$ - N{O_2},\,\, - Cl,\,\, - CN$
increases the acidic character of phenols. Hence, $m-$chlorophenol is more acidic than phenol.
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| column $(I)$ | column $(II)$ | ||
| $(A)$ | Kohlraush law | $(i)$ | $\Lambda _{eq}^o = \Lambda _c^o + \Lambda _a^o$ |
| $(B)$ | Molar Conductivity |
$(ii)$ | $\Lambda _m = \frac{{K \times 1000}}{M}$ |
| $(C)$ | Degree of Dissociation |
$(iii)$ | $\alpha = {\Lambda _m}/\Lambda _m^o$ |
| $(D)$ | Dissociation Constant |
$(iv)$ | ${k_a} = C{\alpha ^2}/1 - \alpha $ |