Multiple choice Which of the following is not a redox reaction? Br2 + 2KI � 2KBr + I2 3Cu + 8HNO3 � 3Cu (NO3)2 + 2NO + 4H2O CaO + 2HCl � CaCl2 + H2O MnO2 + 4HCl � MnCl2 + Cl2 + 2H2O Reveal answer Fill a bubble to check yourself C Correct answer Explanation null