Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

aqa gcse chemistry free > organic test > Flashcards

organic test Flashcards

You may prefer our related Brainscape-certified flashcards:
GCSE Geography - AQA flashcards AP® Chemistry flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Eduqas Route A flashcards GCSE Religious Studies - Edexcel Route A flashcards GCSE Religious Studies - Eduqas Route B flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

what is crude oil

A

finite resource found in rocks

mixture of very large number of compounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is crude oil made of

A

remains of ancient biomass consisting mainly of plankton that was buried in mud for millions of years

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are most of the compounds of crude oil

A

hydrocarbons - molecules made up of hydrogen and carbon only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

first 4 alkanes

A

methane (CH4)
ethane (C2H6)
propane (C3H8)
butane (C4H10)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

general formula for the homologous series of alkanes

A

CnH2n+2n

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

products of fractional distilation

A

solvents - nail varnish remover
lubricants - oil for car engines
polymers - PVC
detergents - washing up liquid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

how does fractional distillation happen

A
  • crude oil is heated and vaporised
  • vapor rises up the fractionating column
  • column is hotter at bottom
  • hydrocarbons cool as they go up the column and condense at different heights as they have different boiling points
  • large molecules, high boiling points, collected at bottom
  • this gives fractions which can be used in various ways
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

types of combustion

A

complete

incomplete

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

complete combustion produces

A

carbon dioxide and water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

combustion word equation

A

methane + oxygen > carbon dioxide + water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

combustion symbol equation

A

CH4 (g) + 2O2 (g) > CO2 + H2O

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

incomplete combustion produces

A

carbon or carbon monoxide and water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

cracking use

A

hydrocarbons can be broken down to produce smaller more useful molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

cracking equation

A

C10H22 > C8H18 + C2H4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

catalytic cracking

A

hydrocarbon is heated to a high temperature and a catalyst used

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

steam cracking

A

hydrocarbon is heated and mixed with steam

17
Q

test for alkene

A

orange-brown bromine water turns colourless when alkene is added

18
Q

alkenes general formula

A

CnH2n

19
Q

what are alkenes

A

hydrocarbons with double carbon-carbon bond

20
Q

first 3 alkenes

A

ethene (C2H4)
propene (C3H6)
butene (C4H8)

21
Q

cracking word equation

A

decane > octane + ethene

aqa gcse chemistry free (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions