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Write any one of the natural indicators....

Write any one of the natural indicators.

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Litmus / beetroot / red cabbage / turmeric solution / extracts of coloured petals of some plants.
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VGS PUBLICATION-BRILLIANT-ACIDS, BASES AND SALTS -Section-1
  1. Take 2 ml of NaOH in a test tube, add two drops of phenolphthalein sol...

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  2. Write any one of the natural indicators.

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  3. Give one example to acid.

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  4. Give one example to base.

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  5. Which of the above solution changes Phenolphthalein solution into pink...

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  6. Give one example to olfactory indicator.

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  7. If a solution of a substance changed red litmus paper into blue, guess...

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  8. Give example for use of olfactory indicator in your daily life.

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  9. Assertion (A) : Pickles and sour substances are not stored in brass an...

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  10. Which gas is evolved when an acid reacts with metal ?

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  11. a) All acids give hydrogen gas with metals. · b) All bases give hydr...

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  12. Which apparatus is required to test hydrogen gas?

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  13. What happens. when a burning candle bring near to the hydrogen gas ?

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  14. Write two required substances to ·get hydrogen gas in your lab ?

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  15. Write the products to the given reaction. Metal+Acid

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  16. Which salt is formed when NaOH reacts with Zn ?

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  17. Which gas is released when acids react with carbonates-?

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  18. Which substance do you use to test CO2 gas?

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  19. Which of the following gives CO2 as a product? A) Na2CO3+HCl to ...

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  20. Name the given reaction. Base+AcidtoSalt+Water

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