Which will make basic buffer?

Options

A. 100 mL of 0.1 M HCl + 100 mL of 0.1 M NaOH
B. 50 mL of 0.1 M NaOH + 25 mL of 0.1 M `CH_(3)COOH`
C. 100 mL of 0.1 M `CH_(3)COOH` + 100 mL of 0.1 M NaOH
D. 100 mL of 0.1 M HCl + 200 mL of 0.1 M `NH_(4)OH`

Answer

D

Explanation

Acid-base titration
`underset("10 m mole")(HCl)+underset(20-10)underset("20 m mole")(Na_(4)OH)tounderset("10 m mole")(Na_(4)Cl)`
HCl is limiting reagent
Solution contain `underset((WB))(NH_(4)OH)&underset((SAWB))(NH_(4)Cl)`
The basic buffer will form