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Correct the statement if it is wrong: I...

Correct the statement if it is wrong:
Indicators show different colours in acidic and basic solutions.

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    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|84 Videos

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Which of the following is/are true about indicators ? (i) Hibiscus and turmeric papers are examples for natural indicators (ii) Phenolpthalein and Methyl orange are examples for Synthetic indicators (iii) Indicators show different colours in acidic and basic solutions (iv) These tell us whether a substance is acidic or basic

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An acidic indicator ionises as I_(n) H hArr "In"^(-) + H^(+) . The molecular and ions of the indicator show different colours. The indicator changed it colour if its acidic of basic form completely predominant. What is the percentage of basic form acidic indicator (p^(ka) = 6) is an aqeous NaCl solution at 25^(@) C

An acidic indicator ionises as I_(n) H hArr "In"^(-) + H^(+) . The molecular and ions of the indicator show different colours. The indicator changed it colour if its acidic of basic form completely predominant. An indicator with P^(Kin) = 5 is added to a solution with p^(H) = 5 . What is the percentage of acidic form of the indicator

VGS PUBLICATION-BRILLIANT-ACIDS AND BASES-EXERCISE
  1. What is the effect of basic substances on turmeric paper?

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  2. Can flowers and turmeric papers also be called as indicators. Why?

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  3. Correct the statement if it is wrong: Indicators show different colou...

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  4. Correct the statement if it is wrong: Sodium hydroxide blue litmus re...

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  5. Correct the statement if it is wrong: Tooth decay is caused by the pr...

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  6. Take vinegar, lemon juice, soapy water, baking soda in different vesse...

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  7. Visit a doctor. Find out the medicines she prescribes to treat acidity...

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  8. Prepare red cabbage juice by boiling a piece of red cabbage in water. ...

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  9. Collect different flowers and prepare their natural indicators with th...

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  10. Test the nature of lemon juice and milk sample with the help of natura...

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  11. How do you feel about nature? It is a big natural laboratory that cont...

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  12. To protect tooth decay we are advised to brush our teeth regularly. Th...

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  13. Which of the following is acidic in nature?

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  14. Why are industrial wastes neutralised before releasing into water?

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  15. Write the names of food substances that you know in the appropriate co...

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  16. Take solutions of some juices of fruits, vegetables, cold drinks and v...

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  17. How are hydroxides prepared ? What is their nature ?

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  18. Classify the substances given in the table into the fallowing categori...

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  19. When do you get a neutral solution from acids and bases?

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  20. How are salts produced,? Give an example.

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