Alkanes (CnH2n+2)

Question 1

Name a secondary pollutant.

Answer 1

PAN. Peroxyacetylnitrate. CH3CO3NO2

Question 2

What problems does PAN cause?

Answer 2

Photochemical smog which leads to 1.Global dimming and 2.Respiratory illness

Question 3

Name 3 primary pollutants.

Answer 3

Carbon monoxide, Oxides of nitrogen and Volatile organic compounds

Question 4

Write the equation for PAN production.

Answer 4

NOx + VOC + Dust + Ozone —–> PAN (in the presence of sunlight)

Question 5

Alkane productions: with reagents, conditions and catalysts

Answer 5

1.Cracking, condtions= Heat and Al2O3
2.Hydrogenation of alkenes, conditions= Nickel or Platinum catalyst and 170°C

Question 6

Alkane reactions: with reagents, conditions and catalysts

Answer 6

1.Cracking, condtions= Heat and Al2O3
2.Complete combustion- CO2 AND H20. Incomplete combustion- CO AND H20
3.Free radical substitution, condtions= UV light

Question 7

Free radical substitution mechanism steps

Answer 7

Initiation, Propagation and Termination