3. Which of the following compounds has the lowest pKa value? (A) acetone (B) phenoi (C) toluene (D) DMF (E) chloroform

8. Which of the following is the best set of reagents to carry out the transformation shown below? (A) 1) NaOH; 2) EtBr; 3) H2, Pt (B) 1) NaNH2; 2) EtBr; 3) H2, Lindlar's catalyst (C) 1) EtMgBr; 2) Na, NH3(liq) (D) 1) O3; 2) Et2S; 3) H2, Lindlar's catalyst (E) 1) NaNH2; 2) EtBr; 3) Na, NH3(liq)