Question

Rank the following acids in order of Bronsted acidity, most acidic to least: CH3OH, CH3SH2, (CH3)2OH, H2F

Answer 1

Answer – We know the Bronsted acidity is defined as the compound which are donate the proton, means H⁺ called acid.

Now we need to look for thw which compound donate easily H⁺ that one is strong acid and those are not donate easily H⁺ that one is weak acid.

We know the most electronegative atom not holding the positive charge, so there H₂F⁺ has positive charge and it donate H⁺ very quickly. Then there is CH₃SH₂⁺ also donate the H⁺ , then (CH₃)₂OH⁺ donate H⁺ easily and finally there is alcohol which is weak acid

H₂F⁺ > CH₃SH₂⁺ > (CH₃)₂OH⁺ > CH₃OH