Question

Acetic Acid is weak acid because

Answer 1

 It doesn't dissociate very much in solution, meaning there are many more whole molecules of acetic acid than separate acetate and hydrogen ions.

Answer 2

HEY DEAR HERE IS YOUR ANSWER
weak acids are those which are partially ionisable .Acitic acid is a weak acid because it is partially ionisable and gives the results in very slow process .
acitic acid is an organic acid also.
HOPE IT HELPS ******