Chemistry Trivia Questions
Total Questions: 129
What colorless, flammable hydrocarbon, commonly found in gasoline, is referred to by a number indicating its rating?
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octane
Which noble gas emits an orange-red glow when an electric current passes through it?
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neon
What is the common gas in the atmosphere that mainly exists as a molecule consisting of 2 atoms?
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oxygen
Which radioactive element, discovered by Marguerite Perey and symbolized as Fr, was named after her country?
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francium
Which reddish metal has the symbol Cu and has 11 known isotopes, with 9 of them being radioactive?
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copper
What is the name of the synthetic rubber created in the 1920s by Julius Nieuwland when he polymerized acetylene and added chlorine atoms?
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neoprene
What type of resin is known for its strong adhesion and is derived from a term meaning 'upon oxygen'?
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epoxy
What term refers to a form of an element that has the same atomic number but a different atomic weight?
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isotope
What is the primary gas found in natural gas?
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methane
Which element, represented by the chemical symbol V, was named after the Scandinavian goddess of beauty?
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vanadium
What type of solution causes litmus paper to turn red?
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acid
What element, represented by the symbol Li and found in the periodic table right after helium, has the atomic number 3?
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lithium
What do you call an atom or group of atoms that possesses an electrical charge?
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ion
What is the most abundant element in Earth's hydrosphere by mass?
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oxygen
What metallic element has the chemical symbol Ag, derived from its Latin name argentum?
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silver
What is the state of matter of the lightest element lithium at room temperature?
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solid
What is the common name for trichloromethane, which was once widely used as an anesthetic?
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chloroform
What chemical compound, once widely used as an anesthetic, is represented by the formula CHCl3?
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chloroform
What fuel is carbonized in an oven to produce coke used in blast furnaces?
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coal
What is the process called that involves using reducing agents like carbon to extract metal from ore at high temperatures?
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smelting
Which element has only one electron in its K shell?
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hydrogen
What element has the symbol P and can exist in black, violet, or highly reactive white forms?
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phosphorus
Which element is represented by the symbol 'B', while argon was formerly abbreviated as 'A'?
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boron
In what state of matter are all inert elements naturally found?
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gas
What element, which is the second most common in the Earth's crust, is used to make transistors and microchips?
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silicon
What is the second-lightest metal that has the symbol K and is soft enough to be cut with a knife?
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potassium
What white powder results from burning a piece of sodium in a flask filled with chlorine gas?
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salt
In which city was the element Holmium named by Per Teodor Cleve?
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stockholm
Which element is central to the study of organic chemistry?
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carbon
Which element, with atomic number 6, can form single, double, or triple bonds when two of its atoms join together?
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carbon
What gas, also known as marsh gas, is found in natural gas and is lighter than air?
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methane
Which compound was found in Bauxite, Arkansas to reduce tooth decay?
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fluoride
Which element, crucial to organic chemistry, is known for forming diamonds?
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carbon
Which element is taken from the air by a fixation process to produce fertilizer?
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nitrogen
Which element had the highest known atomic number until 1940?
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uranium
What is the most common gas in the atmosphere that is sometimes used to make explosives?
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nitrogen
In chemistry, what is an atom or molecule with a single unpaired one of these called a free radical?
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electron
What is the element for which compounds are called fluorides?
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fluorine
What is the element that follows neptunium in the periodic table?
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plutonium
What element combines with three hydrogen atoms to form a molecule of ammonia?
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nitrogen
Which chemical element is abbreviated as Kr on the periodic table?
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krypton
What is the lightest of the halogens, with a name derived from the Latin word for 'to flow'?
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fluorine
What element, symbolized as Sr, has a radioactive isotope 90 commonly found in fallout?
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strontium
What is the name of the metal widely used to plate other metals that comes from a Greek word meaning 'color'?
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chromium
What gas is added to oils to change them from liquids to solids and to give them freshness?
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hydrogen
What chemical solvent, produced by the Hock process, is used in rubber cement and some cleaning fluids?
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acetone
What element has an atomic mass unit equivalent to 1/12 of the mass of one of its atoms?
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carbon
Which isotope of hydrogen has a mass number of 2?
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deuterium
What is the first element on the periodic table that is a gas?
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hydrogen
What is the element with the abbreviation Lr that is named after the inventor of the cyclotron?
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lawrencium
Which element, atomic number 17, is added to drinking water to eliminate bacteria despite being poisonous?
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chlorine
What is the primary component of firedamp, an explosive gas commonly found in mines?
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methane
What element does uranium-235 turn into after about 713 million years?
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lead
What element is represented by the symbol Xe on the periodic table?
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xenon
What does an atom lose to form a positive ion?
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electron
Which element's name is derived from the element radium?
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radon
What element, making up about 80% of the air, must be 'fixed' before it can be used?
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nitrogen
What term is used for two forms of the same element that incorporates the Greek prefix meaning 'equal'?
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isotope
What reddish-brown liquid, used in sedatives, requires about 15,000 tons of seawater to produce just one ton?
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bromine
Which element, extracted from seawater, is the only nonmetallic element that is liquid at room temperature?
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bromine