Medium General Science GENERAL SCIENCE FPSC Question The unit of amount of substance in SI system is _____? A Liter (L) B Mole (mol) C Gram (g) D Kilogram (Kg) Submit Answer Try Again Explanation Explanation The Mole (mol) is the SI unit of amount of substance, representing 6.022 x 10^23 particles. It is used to measure the amount of a substance in a sample. Show Explanation Previous MCQ All MCQs Next MCQ More MCQs in General Science Medium A magnet that is hard to magnetize is called a(n)? A magnet that is hard to magnetize is called a(n)? Medium Birds exhibits which of the following traits? Birds exhibits which of the following traits? Medium Which of the following is/are the characteristics of reptiles? Which of the following is/are the characteristics of reptiles? Medium Which of the following is/are characteristics of amphibians? Which of the following is/are characteristics of amphibians?