Question

The pH of $0.005$ molar aqueous solution of sulphuric acid is approximately

• A. $0.005$
• B. $1$
• C. $0.1$
• D. $2.0$

Answer 1

The correct option is D $2.0$

0.005 Molar of aqueous solution sulphuric acid is present, Concentration of protons in acid is written as

$\left[H^{+}\right]=0.005$

$pH=-log\left(\right[H^{+}\left]\right)=-log\left(0.005\right)=2.301$

$pH=2.301$ approximately 2.