Question

Which of the following will produce a buffer solution when mixed in equal volumes? 

(a) 0.1 mol dm^-3 NH₄OH and 0.1 mol dm^-3 HCl 

(b) 0.05 mol dm^-3 NH₄OH and 0.1 mol dm^-3 HCl 

(c) 0.1 mol dm^-3 NH₄OH and 0.05 mol dm^-3 HCl 

(d) 0.1 mol dm^-3 CH₃COONa and 0.1 mol dm^-3 NaOH

Answer 1

Correct option is : (c) 0.1 mol dm^-3 NH₄OH and 0.05 mol dm^-3 HCl