A solution has `pH=5`, it is diluted `100` times, then it will become

Options

A. Neutral
B. Basic
C. Unaffected
D. More acidic

Answer

A

Explanation

pH = 5 , means `[H^(+)] = 10^(-5)M `
After dilution `[H^(+)] = 10^(-5)//100 = 10^(-7)M`
`[H^(+)] ` from `H_(2)O` cannot be neglected .
Total `[H^(+)] = 10^(-7) +10^(-7) = 2 xx 10^(-7)`
pH = `7 - 0.3010 = 6.6990 = 7` (neutral )