Question

by giving suitable reason, arrange the following acids in increasing order of acidity.
FCH2COOH, ICH2COOH, BRCH2COOH, CLCH2COOH​

Answer 1

Explanation:

by giving suitable reason arrange the following acids

Answer 2

FCH2COOH , fluoroacetic acid has the highest acidic strength.

Explanation:

FCH2COOH > ClCH2COOH > BrCH2COOH > ICH2COOH

• The electron-withdrawing effect which is also called the inductive (-I effect) of the halogens is given in the following order : F>Cl>Br>I and therefore their corresponding halo acetic acids also follow the same trend.
• Fluorine is most electronegative and hence it has the strongest electron withdrawing group as compared to the other halogens.
• More the electronegativity of the halogen , greater is the strength of the substituted carboxylic acid.
• Therefore flouroacetic acid will have more acidity than the -chloro , -Bromo or the -iodo acetic acids.