5. Solid generally forms in this reaction after adding the benzophenone solution to the Grignard reagent. a. What precipitate(s) is/are formed when the benzophenone is added to the Grignard reagent? b. Why is it not soluble in ether? c. Why does the solid disappear when acid is added? d. The reaction also produces biphenyl (PhPh) as an impurity. Where was this impurity at the end of the lab? 6. A common impurity in this reaction is triphenylmethyl ether, which has the formula Ph3COCPh. This product only forms after the addition of acid and the formation of triphenylmethanol. Provide a mechanism for the formation of the symmetrical ether described above, starting with triphenylmethanol. You may abbreviate the aromatic rings as Ph in the mechanism