Exhibit 13-18 Consider the Two-Step Mechanism Below That Has Been

question 145

Multiple Choice

Exhibit 13-18 Consider the two-step mechanism below that has been proposed for the gas phase reaction of H₂ with ICl to produce I₂ and HCl to answer the following problem(s) .
Step 1:
H₂ (g) + ICl (g) →HI (g) + HCl (g) (slow step)
Step 2:
HI (g) + ICl (g) →I₂ (g) + HCl (g) (fast step) Net reaction:
H₂ (g) + 2 ICl (g) →I₂ (g) + 2 HCl
-Refer to Exhibit 13-18. What intermediate ( s ) is(are) present in this mechanism?

• A) HI
• B) HCl
• C) HI and HCl
• D) I₂
• E) I₂ and HCl

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