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Why do curd and sour substances not be k...

Why do curd and sour substances not be kept in copper vessels ?

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Curd and sour substances contain acids which react with copper vessels and form poisonous substances. So curd and sour substances should not be kept in copper vessels.
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VGS PUBLICATION-BRILLIANT-ACIDS, BASES AND SALTS -Section-3
  1. Solution x turned blue litmus to red and Solution y turned red litmus ...

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  2. Solution x turned blue litmus to red and Solution y turned red litmus ...

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  3. Solution x turned blue litmus to red and Solution y turned red litmus ...

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  4. Why do curd and sour substances not be kept in copper vessels ?

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  5. What are the materials required to prepare and test the hydrogen gas i...

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  6. How do you test the CO2 gas ?

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  7. Observe the colour and fill the given table.

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  8. Arrange the apparatus bulb, battery, electrodes and a beaker and test ...

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  9. Explain the procedure to confirm the given salt is a hydrous or anhydr...

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  10. Based on the properties of acids, bases and neutral solutions, fill th...

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  11. Substance 'A' : It is produced by non metallic oxide. Substance 'B' ...

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  12. Fill the following of results of reactions between some substances (ac...

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  13. 1) Which of the above substance is a strong acid ? 2) Which of the a...

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  14. Categorize the following as acids, bases, and salts : lemon juice, ...

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  15. Draw a pH scale and label acids, bases and salts on the scale.

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  16. Label the parts in given diagram.

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  17. Adjacent diagram shows the removal of water crystallisation. what you ...

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  18. What is the role of pH in our digestive system ?

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  19. Write some common acids and bases which are involved in our daily live...

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  20. Write the self defence system in the bodies of animals and plants.

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