C-11-Q048mediumsingle_mcqC2H5Cl+NaOH\mathrm{C_2H_5Cl + NaOH}C2H5Cl+NaOH (alcoholic) → ?aCH2=CH2+NaCl+H2O\mathrm{CH_2=CH_2 + NaCl + H_2O}CH2=CH2+NaCl+