MDCAT Chemistry MCQ #590

If 1.2 grams of Magnesium (Atomic mass 24) reacts completely with excess methyl iodide in dry ether, how many moles of Grignard reagent are formed?

MDCAT Chemistry MCQ #590

  1. Question 1

    Q1. If 1.2 grams of Magnesium (Atomic mass 24) reacts completely with excess methyl iodide in dry ether, how many moles of Grignard reagent are formed?

    • A) 0.05 moles
    • B) 0.10 moles
    • C) 1.00 moles
    • D) 2.40 moles

    Answer: 0.05 moles

    Explanation: 1.2g of Mg is 0.05 moles; it reacts with 0.05 moles of methyl iodide to produce 0.05 moles of Grignard reagent.