Biochemistry In a solution the concentration of hydrogen ion (H+) is 1 x 10-6 moles/litre. The pH of the solution will be – A Three B Six C Nine D Twelve 💡 Explanation In a solution the concentration of hydrogen ion (H+) is 1 x 10-6 moles/litre. The pH of the solution will be - ✓ Correct Answer: B. Six