Question

Which of the following gives the correct increasing order of acidic strength?

• A. Water < Acetic acid < Hydrochloric acid
• B. Water < Hydrochloric acid < Acetic acid
• C. Acetic acid < Water < Hydrochloric acid
• D. Hydrochloric acid < Water < Acetic acid

Answer 1

The correct option is A Water < Acetic acid < Hydrochloric acid

HCl has the highest acidic strength as it is a strong acid and completely or 100% ionizes into its ions which is shown by its dissociation constant. Acetic acid partially dissociates into its ions and at equilibrium stage both the ions,acetae and hydrogen ions are present so it has less acidic strength than HCl. Water is the weakest of all and its ions hydrogen and hydroxide ions keeps on forming water molecule at the equilibrium stage.