ANS:A - 0

The pH value of a solution is a measure of its acidity or alkalinity and is defined as the negative logarithm of the hydrogen ion concentration ([H+][H+]) in moles per liter (M). Given that the solution contains 1 gram of hydrogen ion per liter, we first need to convert the mass of hydrogen ion to moles using its molar mass. The molar mass of hydrogen ion (H+H+) is approximately 1 g/mol. So, the number of moles of hydrogen ion (H+H+) in the solution is: Number of moles=MassMolar mass=1 g1 g/mol=1 mol/LNumber of moles=Molar massMass​=1g/mol1g​=1mol/L Now, to find the pH of the solution, we take the negative logarithm of the hydrogen ion concentration: pH=−log⁡([H+])pH=−log([H+]) pH=−log⁡(1)pH=−log(1) pH=−0pH=−0 pH=0pH=0 So, the pH value of the solution containing 1 gram of hydrogen ion per liter will be 0.