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Acids Bases and...

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  • Question 1
    1 / -0

    Match the chemical substances given in column (I) with their appropriate application given in column (II):

    Column I Column II
    (1) Bleaching powder(i) Preparation of glass
    (2) Baking soda(ii) Production of $$H_2$$ and $$Cl_2$$
    (3) Washing Soda(iii) Decolourisation
    (4) Sodium chloride(iv) Antacid

  • Question 2
    1 / -0

    The sodium compound which is used for softening hard water:

  • Question 3
    1 / -0

    Match the following columns:


    Column (I) Column (II) 
    (1) Bleaching powder(a) Sodium bicarbonate
    (2) Baking soda(b) Sodium carbonate 
    (3) Washing soda(c) Calcium oxychloride
    (4) Plaster of Paris  (d) Calcium sulphate hemihydrate

  • Question 4
    1 / -0

    pH of pure water is__________.

  • Question 5
    1 / -0

    Metal carbonates and hydrogen carbonates react with acids to give :

  • Question 6
    1 / -0

    Sodium chloride is known as:

  • Question 7
    1 / -0

    In soda-acid extinguisher, the bottle contains:

  • Question 8
    1 / -0

    If $$pH$$ of a solution is $$13$$, it means that it is:

  • Question 9
    1 / -0

    Sulphurous acid turns ________.

  • Question 10
    1 / -0

    Non-metals + acids $$\rightarrow$$

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