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Chemistry - section - 2
  1. Which of these acids is not organic in origin?

    2. A.

     Lactic acid
    B.

     Sulphuric acid
    C.

     Citric acid
    D.

     Oxalic acid

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  2. Match the sourc in Column B with the product of

    Column A. (Product)

    Column B (Source)

    A. Formic acid

    1. Lemon

    B. Citric acid

    2. Tamarind

    C. Tartaric acid

    3. Ants

    3. A.

     A B C
    3 2 1
    B.

     A B C
    3 1 2
    C.

     A B C
    2 3 1
    D.

     A B C
    2 1 3

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  3. Saline soil contains

    4. A.

     High concentration of salt
    B.

     Lot of moisture
    C.

     Hard rocks
    D.

     None of the above

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  4. Sour milk contains

    5. A.

     Acetic acid
    B.

     Tartaric acid
    C.

     Citric acid
    D.

     Lactic acid

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  5. Basicity of boric acid, H3BO3 is

    6. A.

     2
    B.

     3
    C.

     4
    D.

     5

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  6. Which one is a soluble salt in H2O?

    7. A.

     CuS
    B.

     Zn(OH)2
    C.

     CaCl2
    D.

     PbCl2

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  7. Vinegar is ________ .

    8. A.

     Diluted acetic acid
    B.

     Glacial acetic acid
    C.

     Glacial formic acid
    D.

     Diluted formic acid

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  8. pH value between 6.5-7.5 makes the soil

    9. A.

     Basic
    B.

     Neutral
    C.

     Acidic
    D.

     None of these

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  9. A pungent smell often present near the urinals is due to

    10. A.

     Sulphur dioxide
    B.

     Chlorine
    C.

     Ammonia
    D.

     Urea

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  10. Ammonial is a mixture of

    11. A.

     Aluminium powder and ammonium nitrate
    B.

     Aluminium powder and ammonium chloride
    C.

     Aluminium powder and ammonium sulphate
    D.

     Aluminium powder and potassium nitrate

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