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General Knowledge :: Chemistry

  1. The new strain of bacteria produced by biotechnology in alcohol industry is

  2. A.

     Escherichia coli

    B.

     Saccharomyces cerevisiae

    C.

     Bacillus subtilis

    D.

     Pseudomonas putida

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  3. Molasses a by-product in the manufacture of sugar, is converted into

  4. A.

     Alcohol

    B.

     Paper

    C.

     Fuel

    D.

     Pulp

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  5. Denatured spirit is ethanol mixed with

  6. A.

     Petrol

    B.

     Kerosene

    C.

     Water

    D.

     Pyridine

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  7. Rectified spirit is :

  8. A.

     95% ethyl alcohol

    B.

     100% ethyl alcohol

    C.

     Methylated spirit

    D.

     Tincture iodine

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  9. The reaction intermediate formed during the preparation of diethyl ether from ethanol by treatment with H2SO4 is

  10. A.

     Carbanion

    B.

     Carbocation

    C.

     Carbene

    D.

     Free radical

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  11. Wood spirit is

  12. A.

     Methyl alcohol

    B.

     Ethyl alcohol

    C.

     Butyl alcohol

    D.

     Propyl alcohol

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  13. When formaldehyde and potassium hydroxide are heated, we get

  14. A.

     Acetylene

    B.

     Methyl alcohol

    C.

     Methane

    D.

     Ethyl formate

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  15. Which of the following metals causes Itai-Itai disease ?

  16. A.

     Cadmium

    B.

     Chromium

    C.

     Cobalt

    D.

     Copper

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  17. Which component referred to as 'Milk sugar'?

  18. A.

     Lactose

    B.

     Maltose

    C.

     Galactose

    D.

     Sucrose

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  19. Match the List-I with List-II and select the correct answer using the codes given below

    List-I (Vitamin)

    List-II(Chemical compound)

    F.

    Vitamin A

    1.

    Thiamin

    G.

    Vitamin B1

    2.

    Retinol

    H.

    Vitamin C

    3.

    Ascorbic acid

    J.

    Vitamin E

    4.

    Tocopherol

    Codes :

    F

    G

    H

    J

    A.

    4

    1

    3

    2

    B.

    2

    3

    1

    4

    C.

    4

    3

    1

    2

    D.

    2

    1

    3

    4

  20. A.

     A

    B.

     B

    C.

     C

    D.

     D

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