Two elementary steps are proposed for the reaction between ClO and NO
CHEMISTRY · Single correct · A Level · Chemistry · Introduction to organic chemistry · Introduction to organic chemistry
Problem
Two elementary steps are proposed for the reaction between ClO− and NO2−. A student adds the steps and claims the overall equation is
ClO− + NO2− + H2O → Cl− + HNO2 + O2 + H+
Which of the following best explains why this proposed mechanism cannot be correct?
(a) The algebraic sum of charges is different for reactants and products in the overall equation.
(b) The number of oxygen atoms is not the same on both sides of the overall equation.
(c) The reaction cannot generate H+ ions because all reactants are negatively charged or neutral.
(d) Both mass and charge are conserved in the overall equation; therefore the mechanism is valid.