1. Why is diethyl ether crucial for the Grignard reaction? (1 point) 2. Why does magnesium metal need to be cleaned before forming a Grignard reagent? (1 point) 3. Write the reaction equation for the preparation of the Grignard reagent methymagnesium iodide. Include reactants, solvent, and product. Do not copy and paste from someone else's work; must be original. (1 point) 4. What is the purpose of adding excess mole equivalents of methylmagnesium iodide? ( 1 point) 5. Label the two chiral centers in the product below as either (R) or (S). (1 point)