What is the order of acidic strength for the | vedclass

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(A) The acidic strength of phenols depends on the stability of the phenoxide ion formed after the loss of a proton.$1$. $-NO_2$ is an electron-withdra

Vedclass · Accepted Answer

$II < I < III < IV$

Vedclass · Answer

(A) The acidic strength of phenols depends on the stability of the phenoxide ion formed after the loss of a proton.$1$. $-NO_2$ is an electron-withdrawing group $(EWG)$, which increases acidic strength by stabilizing the phenoxide ion through $-I$ and $-M$ effects.$2$. $-CH_3$ is an electron-donating group $(EDG)$, which decreases acidic strength by destabilizing the phenoxide ion through $+I$ and hyperconjugation effects.$3$. Comparing the compounds:- $II$ ($p$-cresol) has a $+I$ effect from the $-CH_3$ group, making it the least acidic.- $I$ is phenol itself.- $III$ ($m$-nitrophenol) has only the $-I$ effect from the $-NO_2$ group.- $IV$ ($p$-nitrophenol) has both $-I$ and $-M$ effects from the $-NO_2$ group, making it the most acidic.Thus, the correct order of acidic strength is $II < I < III < IV$.

Column $(I)$	Column $(II)$
$(A)$ Kolbe's reaction	$(i)$ Salicylaldehyde
$(B)$ Reimer-Tiemann reaction	$(ii)$ Ethers
$(C)$ Williamson synthesis	$(iii)$ Ethanol
$(D)$ Fermentation	$(iv)$ Salicylic acid

What is the order of acidic strength for the following compounds?

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From the following compounds,determine the number of compounds that give $(i)$ a red colouration with ceric ammonium nitrate and $(ii)$ a positive iodoform test: $...........$.

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Column $(I)$ Column $(II)$

$(A)$ Kolbe's reaction $(i)$ Salicylaldehyde

$(B)$ Reimer-Tiemann reaction $(ii)$ Ethers

$(C)$ Williamson synthesis $(iii)$ Ethanol

$(D)$ Fermentation $(iv)$ Salicylic acid

The major product in the following reaction sequence is:

Arrange the following compounds in the increasing order of polarity:
$A. CH_3CH_2OCH_2CH_3$
$B. CH_3CH_2OH$
$C. CH_3COCH_3$
$D. CH_3COOH$
Choose the correct answer from the options given below:

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