C1B Quiz

A hydrocarbon is:
1. another term for carbonic acid
2. a compound made of hydrogen, carbon, and oxygen
3. a compound made of hydrogen and carbon only.
4. A hydrated carbon compound.
Crude oil is separated into different fractions by:
1. distillation
2. filtration
3. cracking
4. picking molecules out using very fine tweezers.
When hydrocarbons are cracked,
1. alkenes are turned into alkanes
2. alkanes are turned into alkenes
3. alkenes are turned into alkynes
4. they form carbon dioxide and water.
When repeating units of the same small molecule form long chains, the chain is called:
1. a monomer
2. a dimer
3. a trimer
4. a polymer
Which one of these is the next one in the series of alkanes?
Methane, ethane, propane, butane, pentane...
1. ...hexane
2. ...heptane
3. ...octane
4. ...nonane
Which one of these is a feature of alkenes?
1. They are saturated hydrocarbons.
2. They are hydrocarbons that have one -OH group
3. They have single bonds only
4. They are hydrocarbons that have at least one double bond
Which one of these alkenes is NOT possible?
1. Methene
2. Ethene
3. Propene
4. Butene
Which one of these is NOT a true statement about ethene?
1. It is a plant hormone.
2. It is reactive.
3. It dissolves in water
4. It is the sub-unit for polythene
Some polymers are biodegradable. This means that:
1. they will kill any organisms that come into contact with them.
2. they can be broken down by micro-organisms.
3. they can only be disposed of in a landfill site
4. they can only be disposed of in an incinerator.
Some polymers, when heated gently with a hair-dryer, regain their original shape after they have been deformed. They are referred to as:
1. elastic polymers
2. plastic polymers
3. biodegradable polymers
4. shape memory polymers
Which one of these is NOT a compelling reason for recycling?
1. Holes in the ground (land-fill) are filling up.
2. Burning can give off toxic fumes.
3. Non-biodegradable litter is much more offensive than biodegradable litter.
4. Some materials take hundreds of years to decay away.
Ethanol is one of a group of chemicals called:
1. alkanes
2. alcohols
3. acids
4. alkalis
Which one of these is the most useful property of ethanol?
1. It burns cleanly as a biofuel.
2. It dissolves in water.
3. It makes people drunk.
4. It can be made using living organisms
Plant oils can be used as fuels in cars and lorries, but they are mixed with diesel oil. The reason for this is:
1. the diesel gets rid of impurities in the plant oil that might spoil the engine.
2. diesel is cheaper than plant oils.
3. diesel causes less greenhouse gases and other kinds of pollution than pure plant oils.
4. diesel makes the oils less viscous.
When petrol or diesel engines are running badly, carbon monoxide is given off. The main danger is that:
1. carbon monoxide is colourless
2. carbon monoxide is very toxic.
3. carbon monoxide is a greenhouse gas
4. carbon monoxide has no smell.
Which one of these is not an emulsion?
1. Salad cream
2. Mayonnaise
3. Milk
4. Marseillaise
You cannot see through an emulsion because:
1. the dispersed phase is opaque
2. the continuous phase is opaque
3. the dispersed phase scatters light
4. the dispersed phase is a precipitate.
Some fats are called saturated which means:
1. they have been mixed with water to form an emulsion.
2. they are made of hydrocarbon chains consisting entirely of single bonds
3. they have incorporated water in their crystal structure.
4. there are -OH groups on every carbon atom in the chain.
Which one of these statements describes the structure of a fat correctly?
1. They consist of three fatty acid chains that have bonded to a glycerol molecule.
2. They consist of three glycerol molecules that have bonded to a single fatty acid chain.
3. They consist of three fatty alcohol chains bonded to a single glycerol molecule.
4. They consist of randomly bonded fatty acids, fatty alcohols, and glycerol molecules.
Fatty acids have an acid group at the end. If the long hydrocarbon chain is represented by the letter R, the formula for a fatty acid is:
1. R-OH
2. R-CH3
3. R-H
4. R-COOH
Margarine is made out of plant oils. Part of the process is called hydrogenation, which
1. adds double bonds to make the oils more liquid
2. turns double bonds into single bonds to make the oils more solid
3. adds double bonds to make the oils more solid
4. turns double bonds into single bonds to make the oils more liquid
Hydrogenation involves a catalyst. Which one of these is the catalyst?
1. Iron
2. Vanadium pentoxide
3. Nickel
4. Manganese oxide
All these additives have E numbers. Which one is natural?
1. Tartrazine (E102)
2. Aspartame (E951)
3. Citric acid (E330)
4. Monosodium glutamate (E621)
Aspartame is a sweetener found in many drinks and sweets. Which one of these is a common side-effect?
1. It interferes with the brain, resulting in loss of concentration and hyperactivity in some people.
2. It causes hallucinations.
3. It builds up muscle
4. It increases water loss.
In a chromatography experiment, the solvent moves 25 cm. The spot moves 15 cm. The retention factor is:
1. 0.6
2. 1.67
3. 10
4. 40
Which one of these correctly gives the order of layers, going from the centre of the Earth outwards.
1. Inner core, mantle, outer core, crust, atmosphere
2. Mantle, crust, outer core, inner core, atmosphere
3. Inner core, outer core, mantle, crust, atmosphere.
4. Inner core, outer core, atmosphere, crust, mantle
Which one of these is NOT the result of tectonic movements?
1. Mountain building
2. Earthquakes
3. Mid-ocean ridges
4. Global warming
Mount Everest was once at the bottom of a warm sea. Which rock is it made from?
1. Granite
2. Sandstone
3. Limestone
4. Slate
A hot spot is:
1. where volcanic islands form.
2. a point where convection currents fall back towards the centre of the Earth.
3. where one plate pushes under another
4. a particularly explosive volcanic eruption.
Which one of these is an accurate description of conditions on Venus?
1. Very pleasant warm climate, with a nitrogen and oxygen atmosphere. A potential tourist destination
2. Icy methane atmosphere
3. Icy carbon dioxide atmosphere, raining liquid methane.
4. Very hot, thick carbon dioxide atmosphere. Sulphuric acid rain, incessant thunder.