What is the pH value of the following:-
a) Colourless areated drinks
b) Carrot juice
c) Coffee
d) Tap water
1. Around 6.
2. Between 5-6.
3. Around 5.
4. Between 6.5-7.5.
What are the colour of pH paper , approximate pH value, nature of substance for the following solutions :-
Saliva (before meal ) , saliva (after meal) , lemon juice, colourless aerated drink , carrot juice , coffee, tomato juice , tap water, 1M NaOH , 1M HCl
The pH values of distilled water, fruit juice and sodium bicarbonate were measured using pH papers. What is the correct decreasing order of pH values?