Which of the following cyclic molecules is an arene (aromatic)? [dfmc-1]
molecule W
molecule X
molecule Y
molecule Z
Which of the following cyclic molecules is an alkane? [dfmc-2]
molecule W
molecule X
molecule Y
molecule Z
Which of the following cyclic molecules is an alkene? [dfmc-3]
molecule W
molecule X
molecule Y
molecule Z
Which of the following cyclic molecules is an ether? [dfmc-4]
molecule W
molecule X
molecule Y
molecule Z
Which of the following conversions corresponds to a 'reforming' process? [dfmc-5]
heptane to methylbenzene
heptane to 3-methylhexane
heptane to propene and butane
heptane to 2,2,3-trimethylbutane
Which of the following conversions corresponds to a 'cracking' process? [dfmc-6]
heptane to methylbenzene
heptane to 3-methylhexane
heptane to propene and butane
heptane to 2,2,3-trimethylbutane
Which of the following conversions corresponds to an 'isomerisation' process? [dfmc-7]
heptane to methylbenzene
heptane to heptene
heptane to propene and butane
heptane to 2,2,3-trimethylbutane
Which four numbers a, b, c and d are required to balance the equation ... a CH4(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-8]
1 2 1 2
1 1 1 2
1 2 2 1
1 1 1 1
Which four numbers a, b, c and d are required to balance the equation ... a C2H6(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-9]
1 2 1 3
2 7 4 6
2 4 4 6
1 7 2 3
Which four numbers a, b, c and d are required to balance the equation ... a C3H8(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-10]
1 3 3 4
2 10 4 6
1 5 3 4
2 5 2 3
Which four numbers a, b, c and d are required to balance the equation ... a C4H10(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-11]
1 13 8 4
2 7 4 10
1 5 3 4
2 13 8 10
Which four numbers a, b, c and d are required to balance the equation ... a C5H12(l) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-12]
1 8 5 6
1 4 4 6
2 4 5 12
2 8 10 12
Which four numbers a, b, c and d are required to balance the equation ... a C6H14(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-13]
2 9 6 14
2 19 12 14
1 9 6 7
1 10 12 7
Which four numbers a, b, c and d are required to balance the equation ... a C7H16(l) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-14]
1 5 7 8
2 12 14 16
1 11 7 8
2 11 14 16
Which four numbers a, b, c and d are required to balance the equation ... a C8H18(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-15]
1 13 8 18
1 13 8 9
2 13 16 18
2 25 16 18
Which four numbers a, b, c and d are required to balance the equation ... a C2H4(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-16]
1 3 2 2
1 2 2 2
2 3 4 4
2 6 4 4
Which four numbers a, b, c and d are required to balance the equation ... a C3H6(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-17]
2 5 6 6
2 9 6 6
1 5 3 3
1 9 3 3
Which four numbers a, b, c and d are required to balance the equation ... a C4H8(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-18]
2 12 8 8
2 6 8 8
1 6 4 4
1 3 4 4
Which four numbers a, b, c and d are required to balance the equation ... a C7H8(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfmc-19]
2 9 4 8
2 10 14 8
1 5 7 4
1 9 7 4
Which of the following molecules has the highest boiling point? [dfmc-20]
Which of the following molecules has the lowest octane rating? [dfmc-21]
Which of the following molecules has the lowest boiling point? [dfmc-22]
Which of the following molecules has the highest octane rating? [dfmc-23]
Which of the following molecules has the highest boiling point? [dfmc-24]
Between which of the following molecules do you get hydrogen bonding? [dfmc-25]
Which word means breaking larger alkane molecules into smaller ones? [dfmc-26]
polymerisation
cracking
reforming
isomerisation
Which word means changing changing the structural formula of a molecule without changing the molecular formula? [dfmc-27]
polymerisation
isomerisation
reforming
cracking
Which word means changing open chain alkanes into cycloalkanes and arenes? [dfmc-28]
polymerisation
isomerisation
reforming
cracking
What word means breaking down larger hydrocarbons into smaller ones? [dfsa-1]
What word describes producing a more branched hydrocarbon from a straight chain one of same molecular formula? [dfsa-2]
What word describes the petrochemical industry process of converting straight chain alkanes into cycloalkanes, cycloalkenes and aromatics? [dfsa-3]
What is the molecular formula of ? [dfsa-4]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a CH4(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-5]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C2H6(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-6]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C3H8(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-7]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C4H10(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-8]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C5H12(l) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-9]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C6H14(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-10]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C7H16(l) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-11]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C8H18(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-12]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C2H4(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-13]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C3H6(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-14]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C4H8(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-15]
Which four numbers a, b, c and d are required to balance the equation ... (enter the LOWEST WHOLE NUMBERS with SPACES between them) a C7H8(g) + b O2(g) ==> c CO2(g) + d H2O(l) ? [dfsa-16]
Given the equation for the complete combustion of ethylbenzene ... 2C8H10(g) + 21O2(g) ==> 16CO2(g) + 10H2O(l) what volume, in cm3, of oxygen, is needed to completely burn 10cm3 of vaporised ethylbenzene? (all gas volumes are measured at the same temperature and pressure) [dfsa-17]
Given the equation for the complete combustion of ethylbenzene ... 2C8H10(g) + 21O2(g) ==> 16CO2(g) + 10H2O(l) what volume, in cm3, of carbon dioxide, is formed on completely burning 20cm3 of vaporised ethylbenzene? (all gas volumes are measured at the same temperature and pressure) [dfsa-18]
Given the equation for the complete combustion of ethylbenzene ... 2C8H10(g) + 21O2(g) ==> 16CO2(g) + 10H2O(l) what volume, in cm3, of air, is needed to completely burn 30cm3 of vaporised ethylbenzene? (all gas volumes are measured at the same temperature and pressure, assume air is 21% oxygen) [dfsa-19]
Given the equation for the complete combustion of ethylbenzene ... 2C8H10(g) + 21O2(g) ==> 16CO2(g) + 10H2O(l) what volume, in cm3, of ethylbenzene, is burned completely by 3dm3 of air? (all gas volumes are measured at the same temperature and pressure, assume air is 21% oxygen) [dfsa-20]
Given the equation for the complete combustion of ethylbenzene ... 2C8H10(g) + 21O2(g) ==> 16CO2(g) + 10H2O(l) what volume, in cm3, of ethylbenzene, is burned completely by 2253 of air? (3 sig fig answer, all gas volumes are measured at the same temperature and pressure, assume air is 21% oxygen) [dfsa-21]
Which four numbers a, b, c and d are required to balance the equation ...
? [dfsa-4]