Mr Johar gives daisy two solutions. He tells her to choose the best indicator to find out which solution is pH 4 and which is pH 6. Write down which indicator daisy should use. Explain your answer.
Mr Johar gives daisy two solutions. He tells her to choose the best indicator to find out which solution is pH 4 and which is pH 6. Write down which indicator daisy should use. Explain your answer.
