You have two solutions A and B. The pH of solution A is 6 and pH of solution B is 8.
i. Which solution has more hydrogen ion concentration?
ii. Which of this is acidic and which one is basic?

The pH of a solution is inversely proportional to its hydrogen ion concentration. This means that the solution having lower pH will have more hydrogen ion concentration.

(i) In this case, solution A(having a lower pH of 6) will have more hydrogen ion concentration.

(ii) Solution A is acidic and solution B is basic.