Question

Given below are the pH values of four different liquids: 7.0, 14.0, 4.0, 2.0 Which of these could be that of (i) lemon juice, (ii) distilled water, (iii) 1 M sodium hydroxide solution, (iv) tomato juice

Answer 1

1) distilled water - 7.0 
2) lemon - 2.0
3)sodium hydroxide - 14.0
4)tomato juice - 4.0