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Grapes, Palm oil, Amla (emblica fruit) a...

Grapes, Palm oil, Amla (emblica fruit) and Urine are put before you. You are asked to give the information about the acids that are present in those substances. Collect the information and record in a table.

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VGS PUBLICATION-BRILLIANT-ACIDS AND BASES-EXERCISE
  1. What acids are present in the following substances ? Collect the infor...

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  2. You are asked to find out the acids present in the substances? placed ...

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  3. Grapes, Palm oil, Amla (emblica fruit) and Urine are put before you. Y...

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  4. Write the names of some substances that contain bases that we use in o...

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  5. Methyl orange and Phenolphthalein are indicators. Collect the informat...

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  6. What sort of food do we eat ?

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  7. What kind of tastes do food substances we eat have?

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  8. Do you find any difference in the taste of a raw and a ripe fruit ?

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  9. Do substances change their taste when cooked ?

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  10. Add sugar to lemon juice. What change do you notice in the taste ?

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  11. Is there any difference in the taste of lemon juice without sugar ?

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  12. Do substances change colour when added to other substances ?

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  13. Have you observed any change when lime water is added to turmeric ?

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  14. How do you prepare lime water ? In what way is this useful to you in d...

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  15. You are given a substance. What do you do to identify it as an acid, b...

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  16. Take things which are sour in taste and used as food. Eg. Curd, lemon ...

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  17. Burning sensation of ant bite is caused by……………

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  18. How is it possible to make believe Blood comes out of a lemon ?

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  19. Why are the inner sides of vessels made up of brass and copper coated ...

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  20. Why are pickles, jams, jellies preserved in glass, porcelein and plast...

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