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Which one of the following can be used a...

Which one of the following can be used as an acid base indicator by a visually impared student ?

A

Litmus

B

Turmeric

C

Vanilla essence

D

Petunia leaves

Text Solution

Verified by Experts

The correct Answer is:
C
Vanilla essence can be used as an acid-base indicator by visually impaired students as it is an olfactory indicator whose odour changes in acidic or basic media.
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OSWAL PUBLICATION-ACIDS, BASES AND SALTS-NCERT EXEMPLAR (Multiple Choice Type Questions )
  1. The pH of the gastric juices released during released during digestion...

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  2. Which of the following phenomena occur when a small amount of acid is ...

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  3. Which one of the following can be used as an acid base indicator by a ...

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  4. Which of the following substances will not give carbon dioxide on trea...

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  5. Which of the following is acidic in nature ?

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  6. In an attemp to demonstrate electrical conductivity through an electro...

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  7. Which of the following is used for dissolution of gold ?

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  8. Which of the following is not a mineral acid?

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  9. Which amongst the following is not a base?

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  10. Which of the following statements is not correct?

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  11. Match the chemical substances given in Column (A) with their appropria...

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  12. Equal volumes of hydrochloric acid and sodium hydroxide solutions of s...

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  13. Which of the following is /are true when HCI (g) is passed through wat...

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  14. Which of the following statement is true for acids?

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  15. Which of the following are present in a dilute aqueous solution of hyd...

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  16. Identify the correct represention of reaction occureing during chloral...

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  17. Match the acids given in Column A with their correct source given in C...

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  18. Match the important chemicals given in column (A) with the chemical fo...

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  19. What will be the action of the following substances on litmus paper? ...

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  20. Name the acid present in ant sting and give its chemical formula. Also...

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