For the Overall Reaction a + 2B ? C, Which $\rightleftharpoons$

question 69

Multiple Choice

For the overall reaction A + 2B ? C, which of the following mechanisms yields the correct overall chemical equation and is consistent with the rate equation below? Rate = k[A][B]

• A) A + B \(\rightleftharpoons\) I (fast)
• I + A ? C (slow)
• B) A + B ? I (slow)
• I + B ? C (fast)
• C) 2B ? I (slow)
• A + I ? C (fast)
• D) 2B \(\rightleftharpoons\) I (fast)
• I + A ? C (slow)
• E) A + 2B \(\rightleftharpoons\) I (fast)
• I + B ? C + B (slow)