Alkanes Flashcards

1
Q

Saturated

A

Single bonds
Sp3 hybridization
Max num of H atoms in molecules

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

Crude oil

A

Complex mix of hydrocarbons: Arkansas and cycloalkanes

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

Cycloalkanes

A

Saturated

Ring of +3 C

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

Fractional distillation

A

Separates wide range of different hydrocarbons into fractions using boiling points
Lower Mrs, more volatile
Lower boiling points near the top

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

Alkanes reactivity

A

Unreactive and non-polar
Not attacked by nucleo or electrophiles
Difference in electronegativity between C and H
No partial + charges on any C to attract nucleo
No areas of high electron density to attract electro
Combustion and Substitution

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

Combustion of alkanes formula

A

CxHy + (x + y/4)O2 = xCO2 + (y/2)H2O

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

Dangers of CO

A

Limited supply of O results in partial oxidation to CO a colourless gas
Bonds with haemoglobin, blood can no longer bond to oxygen and cannot transport it
Poisoning you and killing you

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

NItrogen oxides

A

Acid rain

N2 + O2 = 2NO

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

Catalytic converters

A

Redox reaction with volatile organic compounds
Ox of CO to CO2 and Red NO to N2
2CO + 2NO = 2CO2 +N2

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

Free Radical Substitution reaction

A

Halogens in sunlight
Hydrogen replaced by halogen
Initiation: halogens into radicals
Propagation: attack alkane and an alkyl is freed
Alkyl attacks halogen molecule and halogen radical is formed
Termination: halogen radical bonds with alkyl radical

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