Question

Order in Acidity CH3COOH CH2H5COOH HCOOH C3H7COOH​

Answer 1

Answer:

HCOOH > CH3COOH >C2H5COOH > C3H7COOH

Explanation:

Acidity decreases as carbon chain increases

Answer 2

Answer:

order of acidity:  HCOOH > CH₃COOH > C₂H₅COOH > C₃H₇COOH

Explanation:

The acidity of a carboxylic acid depends on the nature of the substituent attached to -COOH group. The electron-withdrawing group increases the acidity whereas the electron-releasing group decreases the acidity of acid.

Compared to H, alkyl groups have less electron-withdrawing power  (electron-releasing group), so CH₃COOH is a weaker acid than HCOOH.

As the number of carbon of the alkyl group increases, lesser will be its electron-withdrawing power and so weaker will be the corresponding carboxylic acid.

The increasing order of acidic strength of given compounds is:

         HCOOH > CH₃COOH > C₂H₅COOH > C₃H₇COOH

.