Children are prone to making mischiefs if they have nothing to do.
‘Mischief’ is the correct form.
940 MCQ for effective preparation of the test of Nouns and Pronouns of English Grammar section.
Read the MCQ statement: Children are prone to making mischiefs if they have nothing to do., keenly and apply the method you have learn through the video lessons for Nouns and Pronouns to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 83-4362.