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General Knowledge :: Chemistry

  1. The first organic compound synthesised in the laboratory was

  2. A.

     Urea

    B.

     Uric acid

    C.

     Lactic acid

    D.

     Glucose


  3. Among the following, carbonate ore of Zinc is

  4. A.

     Zinc blende

    B.

     Calamine

    C.

     Sphalerite

    D.

     Zincite


  5. The metal used for making aircrafts and rockets is

  6. A.

     Lead

    B.

     Aluminium

    C.

     Nickel

    D.

     Copper


  7. The compound that has the least value for octane number is :

  8. A.

     2-methyl heptane

    B.

     Iso-octane

    C.

     2,2-dimethyl hexane

    D.

     N-heptane


  9. The length of double bond is _______ than single bond.

  10. A.

     Shorter

    B.

     Longer

    C.

     Of same lenght

    D.

     None of the above


  11. An example of heterocyclic compound is

  12. A.

     Naphthalene

    B.

     Furan

    C.

     Benzene

    D.

     Anthracene


  13. In organic compounds, nitrogen is estimated by

  14. A.

     Carius method

    B.

     Victor-Meyer's method

    C.

     Liebig's method

    D.

     Dumas method


  15. Heavy metals got their name because compared to other atoms they have

  16. A.

     Higher densities

    B.

     Higher atomic masses

    C.

     Higher atomic numbers

    D.

     Higher atomic radii


  17. Which one of the following elements exhibits the greatest tendency to lose electrons ?

  18. A.

     Fluorine

    B.

     Lithium

    C.

     Oxygen

    D.

     Zinc


  19. Which one is heaviest naturally occurring element of the periodic element?

  20. A.

     Iron

    B.

     Thorium

    C.

     Rhodium

    D.

     Uranium