ggranger5473 ggranger5473 19-12-2022 Chemistry contestada Which bases can deprotonate acetylene? The pKa values of the conjugate acids are given in parentheses. Select all that apply. a. CH2═CHCH2− (pKa = 43) b. CO32− (pKa = 10.2) c. CH3NH− (pKa = 40) d. CH3CH2O− (pKa = 16)