Which of these solutions will form a buffer?
A. KOH and HCl
B. H2CO3 and NaHCO3
C. KF and HF
D. HCN and HF
Is it..
B and C
A and B
C and D
B and D
Only thing i can think of is that HCl and KOH are strong acids/ bases so they are eliminated from being a buffer solution.