Mercury (element) - Quiz
Mercury element
  • 1. What is the most common oxidation state of mercury?
A) Mercury(I)
B) Mercury(II)
C) Mercury(III)
D) Mercury(0)
  • 2. What coordination geometry do all four mercuric halides exhibit?
A) Linear
B) Square planar
C) Tetrahedral
D) Octahedral
  • 3. The coordination behavior of mercuric halides is similar to which ion?
A) Pb2+
B) Ag+
C) Cd2+
D) Zn2+
  • 4. What is the physical state of mercury(II) chloride at room temperature?
A) Colorless liquid
B) Gaseous vapor
C) White solid
D) Red powder
  • 5. At what temperature does mercury(II) oxide revert to its elements?
A) Near 800 °C
B) Near 200 °C
C) Near 400 °C
D) Near 100 °C
  • 6. Who demonstrated the heating of mercury(II) oxide to synthesize pure oxygen?
A) Joseph Priestley
B) Antoine Lavoisier
C) Dmitri Mendeleev
D) John Dalton
  • 7. What do attempted isolation studies of mercury(II) hydroxide yield?
A) Mercury sulfide
B) Mercury chloride
C) Mercury metal
D) Mercury oxide
  • 8. What is the natural ore of mercury(II) sulfide?
A) Sphalerite
B) Pyrite
C) Cinnabar
D) Galena
  • 9. Which pigment is formed by mercury(II) sulfide?
A) Prussian blue
B) Ultramarine
C) Ochre
D) Vermilion
  • 10. What is the black zinc blende form of mercury(II) sulfide known as?
A) Metacinnabar
B) Galena
C) Cinnabar
D) Stibnite
  • 11. Which substance is used as an infrared detector material?
A) Mercury cadmium telluride
B) Mercury(II) oxide
C) Millon's base
D) Mercury(II) fulminate
  • 12. What reagent is used to test for ammonia?
A) Fusible white precipitate
B) Mercury(II) fulminate
C) Millon's base
D) Nessler's reagent
  • 13. What was the historical use of mercury(II) fulminate?
A) Catalyst
B) Pigment
C) Primary explosive
D) Infrared detector
  • 14. What has largely replaced mercury(II) fulminate in detonators?
A) Mercury(II) chloride
B) Lead azide
C) Potassium tetraiodomercurate(II)
D) Ammonia
  • 15. What is the average crustal abundance of mercury in parts per million (ppm)?
A) 0.5 ppm
B) 0.08 ppm
C) 2.5 ppm
D) 0.01 ppm
  • 16. What is the rank of mercury in terms of abundance in the Earth's crust?
A) 88th
B) 45th
C) 10th
D) 66th
  • 17. What is the chemical formula for cinnabar?
A) HgSO4
B) HgO
C) Hg2S
D) HgS
  • 18. What is the maximum percentage of mercury found in the richest ores?
A) 2.5%
B) 0.08%
C) 10%
D) 0.1%
  • 19. In what type of geological environment do mercury ores often occur?
A) Glacial valleys
B) Hot springs or volcanic regions
C) Deep ocean trenches
D) Sedimentary sandstone layers
  • 20. In what year did the McDermitt Mine in Nevada close?
A) 2006
B) 1976
C) 2012
D) 1992
  • 21. What was the price of a 76-pound flask of mercury in 2006?
A) $1,000
B) $650
C) $100
D) $2,200
  • 22. How is mercury extracted from cinnabar?
A) Electrolysis
B) Heating in a current of air
C) Cooling in a vacuum
D) Acid leaching
  • 23. In the chemical reaction HgS + O2 → Hg + SO2, what is the sulfur oxidized into?
A) Sulfur trioxide
B) Sulfate
C) Sulfur dioxide
D) Sulfur gas
  • 24. Which country was the top producer of mercury in 2020?
A) China
B) Tajikistan
C) Mexico
D) Russia
  • 25. What percentage of the world's mercury output did China provide in 2020?
A) 25%
B) 50%
C) 10%
D) 88%
  • 26. Which company used prison labor to develop new cinnabar mines in the 1950s?
A) Almaden
B) Idrija
C) Luo Xi
D) McDermitt
  • 27. What specific item were manufacturers trying to produce by reopening cinnabar mines according to a newspaper report?
A) Barometers
B) Batteries
C) Thermometers
D) Compact fluorescent lamps (CFL)
  • 28. What did Santa Clara County convert the Almaden Quicksilver Mine into in 1976?
A) A shopping mall
B) A county park
C) An industrial facility
D) A residential neighborhood
  • 29. What does the chemical symbol Hg stand for?
A) Mercuric
B) Argentum
C) Hydrosilver
D) Hydrargyrum
  • 30. From which language does the name 'hydrargyros' originate?
A) Greek
B) Latin
C) Egyptian
D) Spanish
  • 31. What is the literal meaning of the Greek word 'hydrargyros'?
A) Water-silver
B) Fast-silver
C) Liquid-metal
D) Heavy-metal
  • 32. Which English name for mercury means 'living-silver'?
A) Cinnabar
B) Hydrargyrum
C) Quicksilver
D) Argentum
  • 33. Which Chinese leader was reportedly killed by drinking a mixture of mercury and powdered jade?
A) Qín Shǐ Huáng Dì
B) Khumarawayh ibn Ahmad ibn Tulun
C) Lewis Carroll
D) Daedalus
  • 34. Where was a pool of mercury found under a marker in a Mesoamerican ballcourt?
A) Lamanai
B) Huancavelica
C) Teotihuacan
D) Almadén
  • 35. According to Aristotle, who used quicksilver to make a statue of Aphrodite move?
A) Lewis Carroll
B) Khumarawayh ibn Ahmad ibn Tulun
C) Qín Shǐ Huáng Dì
D) Daedalus
  • 36. What was the alchemical goal regarding mercury and base metals?
A) Creating an elixir of immortality
B) Removing sulfur to create silver
C) Turning mercury into jade
D) Transmutation into gold
  • 37. Which process invented in 1558 used mercury to extract silver from ore?
A) Patio process
B) Transmutation process
C) Amalgamation process
D) Carroting
  • 38. What was the purpose of the 'carroting' process?
A) Creating mirrors
B) Healing bone fractures
C) Extracting silver from ore
D) Making felt hats
  • 39. What mercury compound was used in the 'carroting' process?
A) Cinnabar
B) Mercury sulfide
C) Mercury vapor
D) Mercuric nitrate
  • 40. The phrase 'mad as a hatter' is linked to which historical industry?
A) Felt hat making
B) Alchemical research
C) Silver mining
D) Mirror manufacturing
  • 41. When did the U.S. Public Health Service ban mercury in the felt industry?
A) 1813
B) 1941
C) 1558
D) 1786
  • 42. What was the primary site of mercury production for the Spanish colonies in the New World?
A) Huancavelica
B) Idrija
C) Monte Amiata
D) Almadén
  • 43. What was the result of exposure to mercury vapor in traditional Chinese and Tibetan practices?
A) Longer life
B) Improved mobility
C) Serious adverse health effects
D) Healing of fractures
  • 44. Which ruler famously built a basin filled with mercury to rock himself to sleep?
A) Daedalus
B) Lewis Carroll
C) Khumarawayh ibn Ahmad ibn Tulun
D) Qín Shǐ Huáng Dì
  • 45. In what type of item did the ancient Egyptians and Romans use cinnabar?
A) Alchemical elixirs
B) Mirrors
C) Cosmetics
D) Hat felt
  • 46. What is the atomic number of mercury?
A) 82
B) 81
C) 79
D) 80
  • 47. Which body systems are affected by mercury toxicity?
A) Integumentary, lymphatic, and reproductive
B) Respiratory, circulatory, and endocrine
C) Nervous, immune, and kidneys
D) Digestive, skeletal, and muscular
  • 48. Who discovered that mercury is a superconductor?
A) Isaac Newton
B) Albert Einstein
C) Heike Kamerlingh Onnes
D) Marie Curie
  • 49. In what year was mercury's superconductivity discovered?
A) 1905
B) 1911
C) 1899
D) 1925
  • 50. Compared to other metals, how does mercury conduct heat?
A) It is a poor conductor
B) It does not conduct heat at all
C) It is a fair conductor equal to copper
D) It is an excellent conductor
  • 51. What happens to the volume of mercury when it freezes?
A) It remains exactly the same
B) It decreases by 3.59%
C) It doubles
D) It increases by 3.59%
  • 52. What chemical symbol represents mercury?
A) Me
B) Hg
C) Ag
D) My
  • 53. Which of the following describes solid mercury?
A) Highly reactive and unstable
B) Gaseous and invisible
C) Brittle and hard
D) Malleable and ductile
  • 54. What metal is the only other element liquid at standard temperature and pressure?
A) Gallium
B) Caesium
C) Rubidium
D) Bromine
  • 55. What are the scientific applications for which mercury is still used?
A) Rocket fuel
B) Water purification
C) Scientific research
D) Food preservation
  • 56. At what temperature was mercury's superconductivity observed?
A) At room temperature
B) Above 100 K
C) Below 4 K
D) Exactly 0 °C
  • 57. Which form of mercury is particularly noted for causing mercury poisoning?
A) Solid mercury
B) Mercury vapor at room temperature
C) Methylmercury
D) Cinnabar crystals
  • 58. What occurs when electricity passes through mercury vapor in a fluorescent lamp?
A) Visible light is produced directly
B) Infrared radiation is released
C) Short-wave ultraviolet light is produced
D) The mercury turns into solid metal
  • 59. Which metal is mercury more stable than?
A) Zinc
B) Gold
C) Silver
D) Platinum
  • 60. Which metal is traditionally used to make flasks for transporting mercury?
A) Platinum
B) Gold
C) Iron
D) Silver
  • 61. Which element does not readily form an amalgam with mercury?
A) Platinum
B) Gold
C) Sodium
D) Silver
  • 62. How many stable isotopes of mercury are there?
A) Two
B) Four
C) Seven
D) Ten
  • 63. Which stable isotope of mercury is the most abundant?
A) 199Hg
B) 201Hg
C) 206Hg
D) 202Hg
  • 64. What is the half-life of the longest-lived radioisotope of mercury, 194Hg?
A) 444 years
B) 100 years
C) 24 hours
D) 46.612 days
  • 65. Which radioisotope of mercury occurs naturally in traces as a decay product of 238U?
A) 194Hg
B) 199Hg
C) 206Hg
D) 203Hg
  • 66. Mercury reacts with which atmospheric gas, similar to silver?
A) Carbon dioxide
B) Hydrogen sulfide
C) Oxygen
D) Nitrogen
  • 67. Where is mercury a natural component, leading to potential contact with processing equipment?
A) Atmospheric dust
B) Ocean sediments
C) Volcanic vents
D) Hydrocarbon reservoirs
  • 68. What is the common name for the colorless solid mercury(I) chloride?
A) cinnabar
B) calomel
C) corrosive sublimate
D) vermilion
  • 69. What is the chemical formula for mercury(I) chloride?
A) HgCl
B) HgCl2
C) Hg2Cl2
D) Hg2Cl
  • 70. How do mercury(I) compounds differ from those of cadmium and zinc?
A) They are all gaseous
B) They are never diamagnetic
C) They form metal-metal bonds
D) They do not form cations
  • 71. What happens when ligands like cyanide are added to aqueous solutions of mercury(I) salts?
A) No chemical reaction occurs
B) Disproportionation goes to completion
C) The mercury(I) ion stabilizes
D) The solution becomes highly magnetic
  • 72. What is the formula of mercury(I) hydride?
A) Hg2H
B) HgH2
C) Hg2H2
D) HgH
  • 73. What is the connectivity of the mercury(I) chloride molecule?
A) Hg-Cl-Cl-Hg
B) Cl-Hg-Hg-Cl
C) Cl-Cl-Hg-Hg
D) Hg-Hg-Cl-Cl
  • 74. Under what conditions are HgF3 and HgF4 predicted to exist?
A) Extreme vacuum
B) Standard atmospheric pressure
C) Extreme pressures
D) High humidity
  • 75. What process is responsible for the creation of methylmercury in water?
A) Biomethylation
B) Electrolysis
C) Oxidation
D) Photodegradation
  • 76. Which mercury-containing organohalide is still widely used but banned in the U.S.?
A) Cinnabar
B) Merbromin
C) Calomel
D) Mercuric chloride
  • 77. What was mercuric chloride once used to treat?
A) Toothaches
B) Constipation
C) Depression
D) Syphilis
  • 78. In what form are organomercury compounds usually found if they have the formula HgRX?
A) Liquids
B) Solids
C) Gases
D) Plasma
  • 79. What common dental material still contains mercury?
A) Fluoride varnish
B) Dental crowns
C) Dental amalgams
D) Orthodontic wire
  • 80. What is the common name for the mercury-based preservative used in vaccines?
A) Mercuro-preserv
B) Thiomercuro
C) Thiomersal
D) Thimerisol
  • 81. What health condition was speculatively linked to vaccine preservatives?
A) Autism
B) Anemia
C) Diabetes
D) Asthma
  • 82. Which child vaccine exception still contains thiomersal?
A) Inactivated influenza vaccine
B) Polio vaccine
C) Chickenpox vaccine
D) Measles vaccine
  • 83. What is the primary medical use of Merbromin?
A) Laxative
B) Topical antiseptic
C) Diuretic
D) Skin whitener
  • 84. What class of drugs has largely replaced mercury-based diuretics?
A) Antibiotics
B) Antihistamines
C) Statins
D) Thiazides
  • 85. What is the legal limit of mercury concentration in skin whiteners according to the Minamata Convention?
A) 1 part per million
B) 10 parts per million
C) 0.5 parts per million
D) 5 parts per million
  • 86. What is one purpose of mercury as an active ingredient in skin products?
A) Reducing acne
B) Increasing collagen
C) Treating eczema
D) Depigmenting skin
  • 87. What is the status of mercury use in medicine in developed countries?
A) Greatly declined
B) Increasing rapidly
C) Completely forbidden
D) Mandatory in clinics
  • 88. What is a common alternative to mercury that is less toxic but more expensive?
A) Copper alloy
B) Lead alloy
C) Galinstan alloy
D) Silver alloy
  • 89. Who invented the mercury thermometer in the early 18th century?
A) Daniel Gabriel Fahrenheit
B) Robert Boyle
C) Isaac Newton
D) Galileo Galilei
  • 90. What liquid was used in the earlier designs of temperature-measuring instruments before mercury?
A) Oil
B) Water
C) Glycerin
D) Alcohol
  • 91. Which protocol led to the banning of many mercury-containing instruments?
A) 1985 Mercury Treaty
B) 2005 Climate Accord
C) 1998 Protocol on Heavy Metals
D) 2010 Industrial Safety Act
  • 92. What is the triple point of mercury used for?
A) Calibration of pressure sensors
B) Measuring electrical conductivity
C) Determining boiling points
D) Temperature standard for the ITS-90
  • 93. Why was the mercury battery commonly used in camera light meters?
A) Constant voltage output
B) Fast recharging speed
C) Ability to be recycled
D) Extreme lightweight
  • 94. Which modern technology is an alternative to mercury thermometers?
A) Simple water gauges
B) Thermistor sensors
C) Pressure-sensitive springs
D) Galvanometers
  • 95. What color do neon-filled tubes with mercury eventually reach after the burning-in process?
A) Consistent dull off-blue
B) Steady crimson red
C) Bright neon green
D) Pure yellow
  • 96. Why were mercury batteries mostly banned in the 1990s?
A) They were too expensive to produce
B) They often caught fire
C) Concerns about contaminating landfills
D) Better lithium technology was cheaper
  • 97. What was the main disadvantage of using mercury in ion engines?
A) It has very low molecular weight
B) It is impossible to store
C) Environmental impact during ground testing
D) It is a solid at room temperature
  • 98. What element eventually replaced mercury as the preferred propellant for ion engines?
A) Xenon
B) Argon
C) Helium
D) Neon
  • 99. Which space mission was the first to use a mercury-fueled ion thruster?
A) Mariner 4
B) Voyager 1
C) SERT-1
D) Apollo 11
  • 100. What device uses mercury in a linear ion-trap to create compact atomic clocks?
A) UNIVAC I
B) Schiller Station
C) Deep Space Atomic Clock
D) SERT-2
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