Practice Test - Chemistry

30 Questions | Total Attempts: 51

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Chemistry Practice Quizzes & Trivia

Subject - Chemistry Chapter - Non Metals There are 20 multiple choice questions scoring 3 for each. There are 20 true or false questions scoring 2 for each. Overall 40 questions in 45 minutes.


Questions and Answers
  • 1. 
    Chlorine acts as a bleaching agent only in the presence of
    • A. 

      Dry air

    • B. 

      Moisture

    • C. 

      Sunlight

    • D. 

      Pure oxygen

  • 2. 
    A gas that cannot be collected over water is
    • A. 

      Nitrogen

    • B. 

      Oxygen

    • C. 

      Sulfur dioxide

    • D. 

      Phosphene

  • 3. 
    The compound which gives off oxygen on moderate heating is
    • A. 

      Cupric oxide

    • B. 

      Mercuric oxide

    • C. 

      Zinc oxide

    • D. 

      Aluminium oxide

  • 4. 
    Bromine can be liberated from potassium bromide solution by action of
    • A. 

      Iodine solution

    • B. 

      Chlorine solution

    • C. 

      Sodium chloride

    • D. 

      Potassium iodide

  • 5. 
    The material used in solar cells contains
    • A. 

      Cesium

    • B. 

      Silicon

    • C. 

      Tin

    • D. 

      Titanium

  • 6. 
    Electrical conductivity is shown by
    • A. 

      Diamond

    • B. 

      Silica

    • C. 

      Carborundum

    • D. 

      Graphite

  • 7. 
    Which of the following statements regarding diamond is not correct?
    • A. 

      Diamond is a bad conductor of heat and electricity

    • B. 

      Diamond crystalizes in the body centered cubic lattice

    • C. 

      The C-C bond length of diamond is 154pm

    • D. 

      Diamond is more dense than graphite.

  • 8. 
    Which of the following statements regarding phosphorus is not true?
    • A. 

      Phosphorus is a element in Group 15

    • B. 

      Phosphorus is obtained by heating the rock phosphate with coke and sand in an electrical furnace around 1800 K

    • C. 

      The phosphorus molecule contains four atoms

    • D. 

      Black phosphorus is the least stable form of the allotropes of phosphorus

  • 9. 
    Oxygen molecule contains
    • A. 

      No unpaired electrons

    • B. 

      One unpaired electron

    • C. 

      Two unpaired electrons

    • D. 

      Four unpaired electrons

  • 10. 
    Ozone is not
    • A. 

      A fast oxidizing agent

    • B. 

      A powerful oxidizing agent

    • C. 

      A bent molecule

    • D. 

      A stable allotrope

  • 11. 
    The gaseous iodine molecules absorb yellow light from the visible region. Its color would be
    • A. 

      Yellow

    • B. 

      Red

    • C. 

      Green

    • D. 

      Violet

  • 12. 
    Bubbling hydrogen sulfide through nitric acid produces
    • A. 

      Rhombic sulfur

    • B. 

      Monoclinic sulfur

    • C. 

      Amorphus sulfur

    • D. 

      Plastic sulfur

  • 13. 
    On heating, the volume of ozone will
    • A. 

      Decrease

    • B. 

      Increase

    • C. 

      Remain unchanged

    • D. 

      Become double

  • 14. 
    The semoconducting form of phosphorus is
    • A. 

      White

    • B. 

      Red

    • C. 

      Black

    • D. 

      Yellow

  • 15. 
    In white phosphorus, the arrangement of phosphorus atoms is
    • A. 

      Linear

    • B. 

      Square planar

    • C. 

      Tetrahedral

    • D. 

      Octahedral

  • 16. 
    The highest bond enthalpy is shown by
    • A. 

      Fluorine

    • B. 

      Chlorine

    • C. 

      Bromine

    • D. 

      Iodine

  • 17. 
    Amongst the halogens, the strongest oxidizing agent is
    • A. 

      Fluorine

    • B. 

      Chlorine

    • C. 

      Bromine

    • D. 

      Iodine

  • 18. 
    White phosphorus is stored
    • A. 

      In air

    • B. 

      Under water

    • C. 

      Under kerosene

    • D. 

      Under carbon disulfide

  • 19. 
    Which of the following is not the mineral of sulfur?
    • A. 

      Chloropatite

    • B. 

      Fool's gold

    • C. 

      Sphalerite

    • D. 

      Chalcopyrite

  • 20. 
    Which statement regarding to white phosphorus is not correct? 1
    • A. 

      It is non poisonous

    • B. 

      It glows in dark

    • C. 

      It has a low ignition temperature

    • D. 

      It is a powerful reducing agent

  • 21. 
    Diamond is harder than graphite
    • A. 

      True

    • B. 

      False

  • 22. 
    Diamond has a high value of refractive index
    • A. 

      True

    • B. 

      False

  • 23. 
    Silicon is a non metal
    • A. 

      True

    • B. 

      False

  • 24. 
    Heating of ammonium nitrate produces nitric oxide gas
    • A. 

      True

    • B. 

      False

  • 25. 
    Caustic soda has no action on red phosphorus
    • A. 

      True

    • B. 

      False

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