Answer :
Answer:
COCl species is an intermediate in the mechanism.
Explanation:
Intermediates are those chemical species which only appears for a short time in a course of a chemical reaction. They act as product and reactant during the reaction. Also they do not appear in overall chemical reaction.
Step 1: [tex]Cl_2\rightarrow 2 Cl[/tex]
Step 2: [tex]Cl + CO\rightarrow COCl [/tex]
Step 3: [tex]COCl + Cl_2\rightarrow COCl_2 + Cl[/tex]
Overall reaction :
[tex]2Cl_2+CO\rightarrow COCl_2+2Cl[/tex]
As we can see that all the chemicals are present in the overall reaction beside COCl.
COCl species is an intermediate in the mechanism.