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Chemistry - section - 2
  1. A fertile soil is likely to have a pH of

    2. A.

     3
    B.

     9
    C.

     6-7
    D.

     14

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  2. Litmus is obtained from

    3. A.

     A bacterium
    B.

     A fungus
    C.

     An alga
    D.

     Lichen

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  3. The pH of lemon juice is expected to be

    4. A.

     Equal to 7
    B.

     More than 7
    C.

     Less than 7
    D.

     Nothing can be predicted

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  4. Antacids are found in drugs that give relief to

    5. A.

     Eye sight
    B.

     Stomach ache
    C.

     Acne
    D.

     Headache

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  5. The pH of human blood is between

    6. A.

     6.5-7
    B.

     7.5-8
    C.

     8-9
    D.

     4.5-5

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  6. Sour taste of lemon is due to the presence of which of the following ?

    7. A.

     Citric acid
    B.

     Acetic acid
    C.

     Oxalic acid
    D.

     Formic acid

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  7. pH scale ranges from

    8. A.

     0 – 7
    B.

     8 – 14
    C.

     0 – 14
    D.

     None

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  8. Normal rainwater has a pH level of

    9. A.

     3.2
    B.

     5.6
    C.

     6.3
    D.

     8.3

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  9. Which one of the following is used as preservative for foodstuff ?

    10. A.

     Sodium Benzoate
    B.

     Picric acid
    C.

     Glycerine
    D.

     Sodium Chloride

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  10. The acid which fails to liberate carbon dioxide from sodium bicarbonate is :

    11. A.

     Acetic acid
    B.

     Formic acid
    C.

     Carbonic acid
    D.

     Sulphuric acid

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