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Question Archive > Chemistry > Flashcards

Chemistry Flashcards

1
Q

Which chemical element with atomic number 2 is named after the Sun?

A

HELIUM

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2
Q

Who isolated a series of substances for the first time including potassium and magnesium and invented a miner’s safely lamp which is named after him?

A

HUMPHRY DAVY

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3
Q

Historically known as oil of vitriol which acid has the formula H2SO4?

A

SULPHURIC ACID

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4
Q

Developed by a German chemist which common piece of laboratory equipment produces a single open gas flame?

A

BUNSEN BURNER

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5
Q

What name is given to an alloy of mercury with another metal or metals?

A

AMALGAM

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6
Q

Invention of the periodic table is generally credited to which Russian chemist in 1869?

A

DMITRI MENDELEEV

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7
Q

Also known as methanoic acid which carboxylic acid is found in the venom of ants?

A

FORMIC ACID

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8
Q

Which colourless gas with a characteristic pungent smell has the formula NH3?

A

AMMONIA

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9
Q

With a name derived from the Greek for “plaster” what is the common name of hydrated calcium sulphate?

A

GYPSUM

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10
Q

Group 17 in the periodic table which includes fluorine chlorine and bromine is also known by what name?

A

HALOGENS

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11
Q

Bronze is an alloy of which two metals?

A

COPPER AND TIN

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12
Q

What is the name of the positive electrode in an electrolytic cell or a storage battery?

A

ANODE

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13
Q

Also known for his research into colour blindness who published the first atomic theory in 1805?

A

JOHN DALTON

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14
Q

Which alloy of silver contains 92.5% pure silver and 7.5% other metals usually copper?

A

STERLING SILVER

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15
Q

Named after a botanist who first observed the phenomenon while studying pollen grains suspended in water what name is given to the random movement of solid particles suspended in a liquid or gas caused by collisions between these particles and the molecules of the liquid or gas?

A

BROWNIAN MOTION

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16
Q

What is the name of the process that treats rubber with sulphur and heat thereby imparting strength greater elasticity and durability?

A

VULCANISATION

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17
Q

Known as the “father of modern chemistry” and noted for his discovery of the role oxygen plays in combustion who was branded a traitor and guillotined in Paris in 1794?

A

ANTOINE LAVOISIER

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18
Q

What name is given to the geometric arrangement of the points in space at which the atoms molecules or ions of a crystal occur?

A

LATTICE

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19
Q

Which mixture of hydrochloric acid and nitric acid is capable of dissolving gold and platinum?

A

AQUA REGIS

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20
Q

One of the SI base units what is defined as “the amount of a chemical substance that contains as many elementary entities as there are atoms in 12 grams of carbon-12”?

A

MOLE

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21
Q

What is the name of a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance?

A

COLLOID

22
Q

Covalent Ionic and Metallic are types of what form of attraction between atoms that enables the formation of chemical compounds?

A

BOND

23
Q

Used for titration which measuring instrument consisting of a graduated glass tube with a tap at the bottom?

A

BURETTE

24
Q

Which element with atomic number 53 is named after the Greek word for “violet” and was first isolated from seaweed?

A

IODINE

25
Q

Also known as lye and caustic soda which compound is used in pulping of wood for making paper and as a drain cleaner?

A

SODIUM HYDROXIDE

26
Q

Which element with atomic number 100 is named after an Italian scientist and was discovered in the debris of the first hydrogen bomb explosion in 1952?

A

FERMIUM

27
Q

What property of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules?

A

VALENCY

28
Q

Widely used in atomic clocks which is the least electronegative element?

A

CAESIUM

29
Q

Group 1 in the periodic table which includes lithium sodium and potassium is also known by what name?

A

ALKALI METALS

30
Q

The nucleus of which radioactive isotope of hydrogen also known as hydrogen-3 contains one proton and two neutrons?

A

TRITIUM

31
Q

The winner of two Nobel Prizes who established a scale for measuring electronegativity in the 1930s?

A

LINUS PAULING

32
Q

Which chemical element with atomic number 38 is named after the Scottish village where it was discovered in the ores of the lead mines?

A

STRONTIUM

33
Q

The simplest alkyne which colourless gas has the formula C2H2?

A

ACETYLENE

34
Q

Also known as fool’s gold which mineral has the formula fes2?

A

(IRON) PYRITE

35
Q

What term refers to any of various techniques for the separation of complex mixtures that rely on the differential affinities of substances for a gas or liquid mobile medium and for a stationary adsorbing medium through which they pass?

A

CHROMATOGRAPHY

36
Q

The Frasch process is a method to extract which element from underground deposits?

A

SULPHUR

37
Q

What name is given to any organic compound in which the hydroxyl functional group (-OH) is bound to a saturated carbon atom?

A

ALCOHOL

38
Q

Four chemical elements are named after which village in Sweden where the elements were first discovered?

A

YTTERBY

39
Q

One of the major constituents of gunpowder which compound is known as saltpetre?

A

POTASSIUM NITRATE

40
Q

What name is given to molecules with the same chemical formula but possessing distinct properties because the atoms are arranged into different chemical structures e.g. Sucrose and lactose?

A

ISOMERS

41
Q

Which Scottish chemist discovered all of the naturally occurring noble gases and received the Nobel Prize in Chemistry in 1904?

A

WILLIAM RAMSAY

42
Q

A term often used in the petroleum industry what is the process whereby complex organic molecules such as long chain hydrocarbons are broken down into simpler molecules such as light hydrocarbons usually at a high temperature?

A

CRACKING

43
Q

Who discovered palladium in 1802 and rhodium in 1804 – he also patented the camera lucida?

A

WILLIAM HYDE WOLLASTON

44
Q

What is the name of the most widely-produced plastic which has the formula (C2H4)n?

A

POLYETHYLENE

45
Q

Named after a French chemist which principle can be used to predict the effect of a change in conditions on a chemical equilibrium?

A

LE CHATELIER’S PRINCIPLE

46
Q

Only two chemical elements are named after female scientists – curium and which other element?

A

MEITNERIUM

47
Q

What is a generic designation for a family of synthetic polymers known generically as aliphatic polyamides?

A

NYLON

48
Q

Which process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide)?

A

BAYER PROCESS

49
Q

Derived from the Greek words for “element” and “measure” what term is used for the calculation of relative quantities of reactants and products in chemical reactions?

A

STOICHIOMETRY

50
Q

Probably the last entry in any Dictionary of Chemistry what is a compound with a positive and a negative charge on different atoms and a total net charge of zero?

A

ZWITTERION

Question Archive (50 decks)

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