A buffer solution can be prepared from a mixture of

Options

A. `NH_(4)Cl` and NaOH in 2 : 1 mole ratio
B. `CH_(3)COONa` and HCl in 1 : 1 mole ratio
C. `CH_(3)COONa` and NaOH in 2 : 1 mole ratio
D. `CH_(3)COONa` and HCl in 1 : 2 mole ratio

Answer

C

Explanation

`[H^(+)=alphaC=10^(-2)`
`alpha=0.1`
`P = i " "c " "R" " T = 1.1 xx0.1xx24.63 = 2.7 " atm"`