Acids, Bases And Salts

4 Questions
  1. 1

    Consider the following statements:

    1. Baking soda is used in fire extinguishers.
    2. Quick lime is used in the manufacture of glass.
    3. Gypsum is used in the manufacture of plaster of Paris.

    Which of the statements given above is/are correct?

    UPSC CSE I - 2004
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    Answer: D. 1, 2 and 3

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  2. 2

    An aqueous solution of copper sulphate is acidic in nature because the salt undergoes

    UPSC CSE I - 2001
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    Answer: C. hydrolysis

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  3. 3

    Match List I with List II and select the correct answer using the codes given below the lists:

    List- I List-II
    A. Blue vitriol 1. Sodium bicarbonate
    B. Epsom salt 2. Sodium hydroxide
    C. Baking soda 3. Magnesium sulphate
    D. Caustic soda 4. Copper sulphate

    Codes:
    ABCD

    UPSC CSE I - 1998
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    Answer: D. 4312

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  4. 4

    The chemical used as a 'fixer' in photography is

    UPSC CSE I - 1996
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    Answer: B. Sodium thiosulphate

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