pH of solution produced when aqueous solution of pH of `6` is mixed with an equal

Options

A. 4.3
B. 3.3
C. `4.0`
D. 4.5

Answer

B

Explanation

`(10^(-6)xx10^(-3))/(2)=(10^(-3))/(2)[10^(-3)+1]`
`[H^(+)]=0.5xx10^(-3)=5xx10^(-4)`
`pH=-log5xx10^(-4)=4-0.6990=3.3010`