Please answer this question...: Q. A buffer solution can be prepared from a mixture of. a) NH4Cl and NaOH in 2:1 mole ratio b) CH3COONa and HCl in 1:1 mole ratio. c) CH3COONa & HCl in 2:1 mole ratio d) CH3COONa and HCl in 1:2 mole ratio. Share with your friends Share 0 Vartika Jain answered this Dear Student, The correct answer is (a) and (c)NH4Cl is a salt of weak base and NaOH is a strong acid. So if double moles of NH4Cl is taken, then it can act as buffer. Similarly, CH3COONa and HCl in 2:1 ratio will act as buffer 0 View Full Answer