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Acids Bases and...

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  • Question 1
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    The pH of tomato juice is:

  • Question 2
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    Since there are $$10$$ water molecules in washing soda, hence it is known as:

  • Question 3
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    What is the $$pH$$ of a most acidic solution among the following?

  • Question 4
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    Phenolpthalein is ____________ type of indicator.

  • Question 5
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    Carbon dioxide reacts with calcium hydroxide to form calcium carbonate and water.


    $$\displaystyle Ca(OH)_2 + CO_2 \rightarrow CaCO_3 + H_2O$$

    This reaction is known as ______.

  • Question 6
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    From which plant is litmus paper or litmus solution obtained?

  • Question 7
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    ____________ solution is blue in colour.

  • Question 8
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    A solution of $$CuSO_4$$ in water is __________ in colour.

  • Question 9
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    When few drops of dil. $$HCl$$ are added to a small amount of red copper oxide, the colour of the solution becomes:

  • Question 10
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    When you add a few drops of acetic acid to a test-tube containing sodium bicarbonate powder, which one of the following is your observation?

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