CBSE Class 11-science Answered

Yes it is true. Strong electrolytes are substances which ionise almost completely so the reactions for these electrolytes are written with a single headed arrow and not with a double headed arrow; they are not in equilibrium with the dissociated H+ ions. Whereas weak electrolytes are substances which ionise partially i.e to a small extent hence they are in equilibrium with the undissociated ions and the reactions are written with a double headed arrow.