Test
Chemistry Revision
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (16)
1Is a crude oil a mixture of many hydrocarbons?
- AVerdadero
- BFalso
2Click what a hydrocarbon is made from...
- AMade from carbon atoms and others.
- BMade from hydrogen and carbon and oxygen atoms.
- CMade from hydrogen and carbon ONLY.
3Click all that apply...
Why are fossil fuels described as finite resources and non-renewable?- AThey never run out.
- BFinite resources are no longer being made or are being made very slowly. Non-renewable energy resources are used up faster than they can be replaced.
- CThey run out eventually.
4Tick ALL problems that are associated with the finite nature of crude oil...
- AAll the readily extractable resources will be used up in the future.
- BThe species of synthesised unicorns depend on drinking the crude oil in order to retain their sparkly awesomeness.
- CFinding replacements.
- DConflict between making petrochemicals and fuels.
5In the fractional distillation of crude oil:-
Crude oil is [blank_start]heated.[blank_end]
The fractionating column has a temperature [blank_start]gradient[blank_end] ([blank_start]cold[blank_end] at the top and [blank_start]hot[blank_end] at the bottom).
Fractions containing [blank_start]mixtures[blank_end] of hydrocarbons are obtained.
The fractions contain many substances with [blank_start]similar[blank_end] boiling points.
Fractions with low boiling points exit from the [blank_start]top[blank_end] of the column. Fractions with high boiling points exit from the [blank_start]bottom[blank_end] of the fractionating column.- Aheated.
- Bgradient
- Ccold
- Dhot
- Emixtures
- Fsimilar
- Gtop
- Hbottom
6LPG contains [blank_start]propane[blank_end] and [blank_start]butane.[blank_end]
- Apropane
- Bbutane.
7Click the potential environmental problems involved in the transportation of crude oil...
- ADamage to birds' feathers, causing death.
- BDetergent used to clean up oil slicks and consequent damage to wildlife.
- CIt'll make the clouds sad.
8The hydrocarbons in crude oil can be separated by fractional distillation because the [blank_start]covalent[blank_end] bonds between carbon and hydrogen atoms within a hydrocarbon are [blank_start]stronger[blank_end] than the [blank_start]weaker[blank_end] intermolecular forces between hydrocarbon molecules.
- Acovalent
- Bstronger
- Cweaker
9Intermolecular means [blank_start]between the molecules[blank_end] during boiling, intermolecular forces are [blank_start]broken[blank_end] but [blank_start]covalent[blank_end] bonds are not.
- Abetween the molecules
- Bbroken
- Ccovalent
10Intermolecular forces between large hydrocarbon molecules are [blank_start]stronger[blank_end] than those between smaller hydrocarbon molecules.
- Astronger
11Check the political problems associated with the exploitation of crude oil...
- AUK depends on oil and gas from politically unstable countries.
- BFuture supply issues.
- CThe Dwarves will finally have enough and start a rebellion led by an inner group enigmatically named 'The BrotherHood'.
12Cracking crude oil fractions:-
Coverts [blank_start]large[blank_end] alkane molecules into smaller [blank_start]alkene[blank_end] molecules .
Uses an [blank_start]aluminium oxide[blank_end] catalyst at a [blank_start]high[blank_end] temperature.
The alkene molecules made are useful because they can be used to make [blank_start]polymers.[blank_end]- Alarge
- Balkene
- Caluminium oxide
- Dhigh
- Epolymers.
13When crude oil is distilled the volume of each fraction is not the same, we get too many [blank_start]long-chain[blank_end] hydrocarbons than are needed and not enough short-chain hydrocarbons (e.g. [blank_start]petrol[blank_end]) to meet the demand for them. Cracking helps an oil refinery match its supply of useful products (such as petrol) to the [blank_start]demand[blank_end] for them.
- Along-chain
- Bpetrol
- Cdemand
14List the seven factors to consider when choosing the best fossil fuel:-
T[blank_start]oxicity[blank_end] (of fumes)
E[blank_start]nergy Value[blank_end]
A[blank_start]vailability[blank_end]
[blank_start]Cost[blank_end]
U[blank_start]sability[blank_end] (light it easily? move it easily?)
P[blank_start]ollution[blank_end] (green house effect/smoke)
[blank_start]Storage[blank_end] (space used)- Aoxicity
- Bnergy Value
- Cvailability
- DCost
- Esability
- Follution
- GStorage
15The amount of fossil fuels being burnt is increasing because of the growth of use in developing countries like India and China, and the world population is increasing... IS THIS TRUE?
- AVerdadero
- BFalso
16Choose the word and symbol equations for the complete combustion of a hydrocarbon fuels e.g. methane. (CH4)
- ACH4 + 2O2 - 2CO2 + H2O
- BCO4+ 2CH + H2O
Información
- Descripción
- Test sobre Chemistry Revision, creado por MildredMildred el 02/11/2015.
- Autor
- MildredMildred
- Idioma
- English
- Visitas
- 26
- Etiquetas
- Valoración
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