When mixed together, all of the following pairs can form buffers EXCEPT Chemistry When mixed together, all of the following pairs can form buffers EXCEPT a.H3PO4 and NaH2PO4. b.NaH2PO4 and Na2HPO4. c.NaI and NaOH. d.HCl and NaCH3CO2. Answer: c Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+