A proposed mechanism for the decomposition of ozone in the atmosphere is:
Step 1:
Step 2:
Which of the following species is an intermediate?

Question

A proposed mechanism for the decomposition of ozone in the atmosphere is: 
Step 1:  
Step 2: 
 Which of the following species is an intermediate?

Quizplus · Accepted Answer

In step 1, O3 reacts with Cl to form ClO and O2. In step 2, ClO reacts with O to form Cl and O2. ClO is an intermediate because it is produced in step 1 and consumed in step 2, but is not a reactant or product in the overall reaction.

A Proposed Mechanism for the Decomposition of Ozone in the Atmosphere