1.In the following reaction, A and B respectively are:A→HBrC2H5Br→BAA \xrightarrow{HBr} C_2H_5Br \xrightarrow{B} AAHBrC2H5BrBAa.C2H4C_2H_4C2H4 and alcoholic KOH/ΔKOH/\DeltaKOH/Δb.C2H5ClC_2H_5ClC2H5Cl and aqueous KOH/ΔKOH/\DeltaKOH/Δc.C2H2C_2H_2C2H2 and PBr3PBr_3PBr3d.None of theseLogin to continueOnly logged in users canattempt or see the solution.