Arrange the following labelled hydrogens in decreasing order of acidity:

Question

Arrange the following labelled hydrogens in decreasing order of acidity: <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/80c418ae92b292ff6694fbf685aa7c7c-.png" /> (A) b > c > d > a (B) c > b > a > d (C) b > a > c > d (D) c > b > d > a

Tardigrade Admin · Accepted Answer

Acidic strength order: R - overset underset||OC- OH > R - OH > R - C ≡ CH Reason: R - overset underset||OC - O ominus stable by equivalent resonance. Stable: <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/25019868eee890254d5942aa52b51717-.png" /> So answer is b > c > d > a.

Q. Arrange the following labelled hydrogens in decreasing order of acidity :

$b > c > d > a$

$c > b > a > d$

$b > a > c > d$

$c > b > d > a$

Acidic strength order :
$R - C ∣∣ O - O H > R - O H > R - C \equiv C H$
Reason : $R - C ∣∣ O - O^{⊖}$ stable by equivalent resonance.
Stable :

So answer is $b > c > d > a .$

Q. Arrange the following labelled hydrogens in decreasing order of acidity :

b>c>d>a

c>b>a>d

b>a>c>d

c>b>d>a

Acidic strength order : R−C∣∣O​−OH>R−OH>R−C≡CH Reason : R−C∣∣O​−O⊖ stable by equivalent resonance. Stable : So answer is b>c>d>a.

$b > c > d > a$

$c > b > a > d$

$b > a > c > d$

$c > b > d > a$

Acidic strength order :
$R - C ∣∣ O - O H > R - O H > R - C \equiv C H$
Reason : $R - C ∣∣ O - O^{⊖}$ stable by equivalent resonance.
Stable :

So answer is $b > c > d > a .$