Question

Arrange the following as their increasing acidic strength propanoic acid, ethanoic acid, 2-flouro ethanoic acid, 2-chloro ethanoi acid, dichloroehtanoic acid also give reason

Answer 1

Acidic strength is inversely proportional to the numbers of carbon atoms.It also depends on the oxidizing strength of the atom that's substituted as well as numbers of substituted atom.So order is
propanoic acid<ethanoic acid<2-chloro ethanoic acid<2-Flouro ethanoic acid<dicholoroethanoic acid.