B-3.Which of the following phenols has the largest pKavalue (i.e., is least acidic)?(a)(c)(b)(d)B-4.Which of the following reactions is a more effective method for preparing phenyl propylether?I:II:(a)Reaction I is more effective.(b)Reaction II is more effective.(c)Both reactions I and II are effective.(d)Neither reaction I nor reaction II is effective.B-5.What reactant gives the product shown on heating with aluminum chloride?(ac)
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