Question: Zinc oxide is believed to be mentioned in what ancient text?
Answer: The Charaka Samhita

Question: Active zinc mines in India date back to what period?
Answer: Mauryan period

Question: What process occurred around the 12th century?
Answer: smelting of metallic zinc

Question: When was the Rasaratna Samuccaya written?
Answer: 13th century AD,

Question: What are the two uses of zinc ore mentioned in the Rasaratna Samuccaya?
Answer: metal extraction and another used for medicinal purposes

Question: Who is attributed as first documenting zinc?
Answer: Paracelsus

Question: Why is it possible that the name zinc could be derived from the German zinn?
Answer: imply "tin-like"

Question: Why would zinc possibly be derived from the German word zinke?
Answer: metallic zinc crystals have a needle-like appearance

Question: What are some of the other terms for zinc?
Answer: Indian tin, tutanego, calamine, and spinter.

Question: Who first patented the process that creates an oxide usable in the retort process?
Answer: William Champion's brother, John,

Question: Before John Champion, what was the only element used to produce zinc?
Answer: calamine

Question: Who built the first horizontal retort smelter?
Answer: Johann Christian Ruberg

Question: What did Galvani name the effect he created of causing the frogs legs to twitch?
Answer: animal electricity

Question: The discoveries made by Galvani lead to what three important things?
Answer: electrical batteries, galvanization and cathodic protection.

Question: What is used to produce the metal zinc?
Answer: extractive metallurgy.

Question: What is froth flotation used for?
Answer: get an ore concentrate

Question: What is the first step in zinc metal production?
Answer: grinding the ore

Question: What percentage of the ore concentrate is zinc?
Answer: 50%

Question: Large amounts of sulfur dioxide and cadmium vapor are produced due to what?
Answer: The production for sulfidic zinc ores

Question: Smelter slag contains a significant amount of what?
Answer: heavy metals

Question: Why does the Geul River contain heavy metals in a significant amount?
Answer: mining operations leach significant amounts of zinc and cadmium

Question: What is the ratio that anthropogenic and natural emissions occur at?
Answer: 20 to 1

Question: What two compounds is zinc more reactive than?
Answer: iron or steel

Question: What forms as zinc corrodes?
Answer: protective surface layer of oxide and carbonate

Question: How is zinc applied?
Answer: electrochemically or as molten zinc

Question: What is used on many common items, such as chain link fences?
Answer: Galvanization

Question: What makes zinc an efficient sacrificial anode?
Answer: relative reactivity of zinc and its ability to attract oxidation

Question: Connecting anodes made from zinc to buried pipe creates what?
Answer: cathodic protection

Question: What does attaching a zinc disc to a ships iron rudder do?
Answer: protect metals that are exposed to sea water from corrosion

Question: Why does zinc protect metals exposed to sea water from corroding?
Answer: will slowly corrode, whereas the rudder stays unattacked

Question: What has zinc replaced in pipe organs?
Answer: lead/tin alloy

Question: Zinc, copper and aluminum alloys have use in what part of machinery?
Answer: machine bearings

Question: Zinc in the main metal used in making which american currency?
Answer: one cent coins

Question: What is zinc coated with to influence the look of pennies?
Answer: thin layer of copper

Question: Aside from die casting, what are alloys of zinc mixed with copper, aluminium and magnesium used for?
Answer: spin casting

Question: Alloys of zinc mixed with copper, aluminium and magnesium are marketed as what?
Answer: Zamak

Question: What is possible to produce thanks to the low melting point and low viscosity of zinc aluminium alloy?
Answer: small and intricate shapes

Question: What brand name of alloy is supposed to be as strong as steel while still being malleable as plastic?
Answer: Prestal

Question: What is used to mold Prestal?
Answer: die casts made of ceramics and cement.

Question: What can be done when small amounts of lead are added to alloys?
Answer: cold-rolled into sheets

Question: What is made with an alloy of 4% aluminium mixed with 96% zinc?
Answer: stamping dies

Question: Why are alloys used to make stamping dies rather than metal?
Answer: too expensive

Question: Why isn't unalloyed zinc used in construction applications?
Answer: too brittle

Question: In what form is 1/4 of zinc used in the US?
Answer: zinc compounds

Question: What kind of zinc compound is used in manufacturing rubber?
Answer: Zinc oxide

Question: What protects the polymers in rubber from ultraviolet radiation?
Answer: Zinc oxide

Question: Why is zinc oxide useful in photocopying products?
Answer: semiconductor

Question: What kind of process is the zinc zinc-oxide cycle?
Answer: thermochemical

Question: What is added to wood in order to preserve it?
Answer: Zinc chloride

Question: What is the feature of zinc sufide that makes it useful in television screens?
Answer: luminescent pigments

Question: What kind of lasers are crystals of zinc suflde used in?
Answer: mid-infrared

Question: Where is zinc pyrithion used?
Answer: antifouling paints.

Question: What is the most abundant zinc isotope?
Answer: 64Zn

Question: What does 65Zn produce?
Answer: intense gamma radiation

Question: Why is zinc oxide used in nuclear reactors?
Answer: anti-corrosion agent

Question: What is used to study how alloys containing zinc wear out?
Answer: 65Zn

Question: What consumable product is zinc included in?
Answer: vitamin and mineral supplements

Question: What property of zinc is believed to protect against skin aging?
Answer: antioxidant

Question: What is the benefit of zinc after injury?
Answer: speed up the healing

Question: What kind of cancer cells may zinc prove to kill?
Answer: prostate

Question: What type of agent is zync useful as against prostate cancer?
Answer: chemotherapeutic

Question: What could overuse of zinc possibly cause?
Answer: prostate cancer

Question: Where does zinc naturally buildup in the body?
Answer: prostate.

Question: What does organozinc chemisty describe?
Answer: physical properties, synthesis and reactions.

Question: What is the zinc equivalent of the Grinard reaction?
Answer: The Barbier reaction

Question: When will organomagnesium halide formation fail?
Answer: presence of just about any water

Question: What are dimethylzinc, dietylzinc and diphenylzinc?
Answer: Commercially available diorganozinc compounds

Question: What role does zinc play in fingers, twists and clusters?
Answer: structural

Question: What are proteins that druing replication and transcription of DNA, recognize base DNA?
Answer: transcription factors,

Question: How many amino acids do the Zn2+ ions bind to?
Answer: four

Question: What does the transcription factor wrap around?
Answer: DNA helix

Question: What is the most common supplement in the US?
Answer: zinc oxide

Question: Why is zinc carbonate poorly absorbed in the body?
Answer: nearly insoluble

Question: What is the recommended daily dose of zinc supplement in healthy adults?
Answer: 20 mg/day

Question: What is the Tolderable Upper intake of zinc?
Answer: 40 mg/day

Question: Zinc oxide is used to fortify what product?
Answer: cereals

Question: In what product did  various compounds of zinc show little difference in absorption?
Answer: maize tortillas

Question: What compound is better absorbed than zinc gluconate?
Answer: zinc picolinate

Question: What is the best absorbed dietary zinc compound?
Answer: zinc glycinate

Question: Symptoms ranging from diarrhea to eye lesions are from what?
Answer: mild zinc deficiency

Question: What is a symptom of both zinc deficiency and excess?
Answer: depresses immunity