MDCAT Medical Exams Quizzes MCQs Quizzes MDCAT 2017 Chemistry Basic Concepts Sample Paper 1

Question:
Empirical formula and formula unit of an ionic compound:

Option A):
Ionic compounds do not have any empirical formula
Option B):
Are always similar
Option C):
Are always different
Option D):
May be similar or different

Correct Answer is Option D):
May be similar or different