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Two solutions A and B have pH values of ...

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?

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Solution A: litmus from blue to red, Solutio B: Phenolphthalein from colourless to pink
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LAKHMIR SINGH & MANJIT KAUR-ACID, BASES AND SALTS-Exercise
  1. A beaker of concentrated hydrochloric acid has a pH of 1. What colour ...

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  2. Two solutions X and Y are tested with universal indicator. Solution X ...

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  3. Two solutions A and B have pH values of 3.0 and 9.5 respectively. Whic...

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  4. Two drinks P and Q gave acidic and alkaline reactions, respectively on...

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  5. Two solutions X and Y have pH=4 and pH=8, respectively. Which solution...

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  6. Fill in the following blanks with suitable words (a). Acids have a p...

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  7. Fresh milk has a pH of 6. How do you think the pH will change as it tu...

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  8. (a). What is a universal indicator? For what purpose is it used? (b)...

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  9. Which chemical is injected into the skin of a person. (a). During an...

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  10. (a). Explain the pH change as the cause of tooth decay. How can tooth ...

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  11. (a). What happens during a bee sting? What is its remedy? (b). What ...

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  12. (a). Why is it wrong the treat a bee sting with vinergar? (b). Why i...

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  13. (a). What does the pH of a solution signify? Three solutions A, B and ...

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  14. (a). The pH values of six solutions A to F are given below: A=0, B=1...

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  15. (a). The pH of a cold drink is 5. What will be its action on blue and ...

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  16. Under what soil conditions do you think a farmer would treat the soil ...

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  17. Which acid is produced in our stomach ? What happens if there is an ex...

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  18. The soil in a field is highly acidic. Name two materials which can be ...

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  19. What is meant by strong bases and weak bases? Classify the following i...

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  20. What ions are present in the solutions of following substances? (write...

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