Advertisements
Advertisements
प्रश्न
hich is more basic (or more alkaline) : a solution of pH = 8 or a solution of pH = 11?
उत्तर
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
संबंधित प्रश्न
You have two solutions, A and B. The pH of solution A is 6 and pH of solution B is 8. Which solution has more hydrogen ion concentration? Which of this is acidic and which one is basic?
Fresh milk from cows has a pH of 6. So how does the pH change when this milk is turned to curd? Explain your answer.
Name an indicator which is red in acid solution but turns blue in basic solution.
How does a universal indicator work?
How does an antacid work?
When a solution becomes more acidic, does the pH get higher or lower?
Acids and bases can be identified in the laboratory by ______.
Write a note on:
Litmus
Take a small beetroot vegetable and cut it into pieces. Boil them in hot water and filter the extract. Take two test tubes. Take sodium hydroxide solution in one test tube and vinegar or lemon juice in another test tube. Add beetroot extract slowly. Observe the colour change. What do you infer?
Using the knowledge of acids and bases, write a secret message with the help of baking soda and beet root. Explain how it works.
(Hint: Prepare baking soda solution in water. Use this solution to write the message on a sheet of white paper with a cotton bud. Rub a slice of fresh beetroot over the message.)
