organics 1 Flashcards

1
Q

what is a hydrocarbon?

A

a molecule containing hydrogen and carbon ONLY

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2
Q

how is crude oil separated

A

fractional disstilation

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3
Q

what is the order of the fractional distillation column

A

lowest BP: refinery gases
gasoline
kerosene
diesel
fuel oil
bitumen

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4
Q

use for bitumen?

A

road tarmac

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5
Q

use for fuel oil?

A

ship fuel

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6
Q

use for diesel?

A

lorry fuel

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7
Q

use for kerosene?

A

plane fuel

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8
Q

use for gasoline?

A

car fuel

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9
Q

use for refinery gas?

A

home heating

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10
Q

what does complete combustion produce

A

CO2 and H2O

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11
Q

what does incomplete combustion produce

A

CO and H2O

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12
Q

how does crude oil contribute to pollution

A
  • N2 + O2 at high temp form NO
  • sulfur (impurity) + O2 forms SO2
  • both are non metal oxides = acid rain
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13
Q

what is cracking

A

turns long chain hydrocarbons into shorter more useful ones

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14
Q

what does cracking require

A

catalyst: AL2O3
temperature: 600 C

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15
Q

similarities in a homologous series

A
  • similar chemical properties
  • trend in physical properties
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16
Q

properties of alkanes

A

saturated - C-C
names end in -ane

17
Q

general alkane formula

A

CnH2n+2

18
Q

isomers of alkanes?

A

same molecular formula, different structural/display formula

19
Q

combustion in alkanes?

A

same as crude oil

20
Q

what is substitution

A

substitutes an H atom for a halogen

21
Q

conditions for substitution to occur?

A

UV light

22
Q

properties of alkenes?

A

unsaturated - C=C
names end in -ene

23
Q

isomers of alkenes?

A

same as alkanes

24
Q

combustion in alkenes?

A

same as crude oil

25
Q

what is addition?

A

adding two halogen atoms and breaking the C=C
only one product

26
Q

test for alkene or alkane?

A

add bromine water
alkane: stays orange
alkene: orange to colourless