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General Knowledge :: Chemistry

  1. The ore which is found in abundance in India is

  2. A.
    monazite
    B.
    fluorspar
    C.
    bauxite
    D.
    magnetite

  3. The inherited traits of an organism are controlled by

  4. A.
    RNA molecules
    B.
    nucleotides
    C.
    DNA molecules
    D.
    enzymes

  5. The heat energy produced when the human body metabolises 1 gram of fat is

  6. A.
    30 KJ
    B.
    1 KJ
    C.
    39 KJ
    D.
    29 KJ

  7. What are the number of moles of CO2 which contains 16 g of oxygen?

  8. A.
    0.5 mole
    B.
    0.2 mole
    C.
    0.4 mole
    D.
    0.25 mole

  9. The main use of salt in the diet is to

  10. A.
    make the taste of food better
    B.
    produce in small amounts the hydrochloric acid required for the digestion of food
    C.
    ease the process of cooking
    D.
    increase the solubility of food particles in water

  11. The monomer of polythene is

  12. A.
    vinyl chloride
    B.
    ethylene
    C.
    ethyl alcohol
    D.
    None of the above

  13. The luster of a metal is due to

  14. A.
    its high density
    B.
    its high polishing
    C.
    its chemical inertness
    D.
    presence of free electrons

  15. The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

  16. A.
    1.568 x 103
    B.
    6.023 x 1019
    C.
    4.84 x 1017
    D.
    6.023 x 1023

  17. The most malleable metal is

  18. A.
    platinum
    B.
    silver
    C.
    iron
    D.
    gold

  19. The oil used in the froth floatation process is

  20. A.
    coconut oil
    B.
    olive oil
    C.
    kerosene oil
    D.
    pine oil