Advertisements
Advertisements
Question
hich is more basic (or more alkaline) : a solution of pH = 8 or a solution of pH = 11?
Solution
A solution with a pH of 11 is more basic than a solution with a pH of 8. This is because a pH value greater than 7 indicates a basic solution. As the pH value increases from 7 to 14, there is an increase in the concentration of OH-, which increases the strength of the solution.
APPEARS IN
RELATED QUESTIONS
A milkman adds a very small amount of baking soda to fresh milk. Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
Two solutions X and Y are tested with universal indicator. Solution X turns orange whereas solution Y turns red. Which of the solutions is a stronger acid?
Two solutions A and B have pH values of 3.0 and 9.5 respectively. Which of these will turn litmus solution from blue to red and which will turn phenolphthalein from colourless to pink?
Fill in the following blank with suitable words:
Acids have a pH...........than 7.
Water is a neutral substance. What colour will you get when you add a few drops of universal indicator to a test-tube containing water?
What would you expect the pH of pure water to be?
A sample of rain water turned universal indicator paper yellow. What would you expect it pH to be? Is it a strong or a weak acid?
What do you think will be the pH of an antacid solution: less than 7 or more than 7?
The colour of methyl orange indicator in a solution is yellow. The pH of this solution is likely to be:
(a) 7
(b) less than 7
(c) 0
(d) more than 7
A milkman adds a very small amount of baking soda to fresh milk. Why does this milk take a long time to set as curd?