Organic Chemistry Alkanes

Question 1

Complete combustion of Alkanes

Alkane + …..= ….+……

Answer 1

Alkane + o2= CO2+H2O

Question 2

Incomplete combustion of alkane

Alkane + O2= ….+…..
Or. …..

Answer 2

Alkane+O2= CO+ H2O

C

Question 3

Alkanes and halogens in the presence of ……

Alkane+ halogen=…+….

Answer 3

Presence of UV light

Alkane+ halogen= haloalkane + H(halogen)

                Eg HBr

Question 4

Radical substitution on Alkanes in sunlight ( Br2 and CH4)

Answer 4

Initiation- Br2 =Br• + Br•
Propagation- CH4+Br•=•CH3+HBr
•CH3+Br2=CH3Br+Br•
Termination- Br•+Br•=Br2
•CH3+•CH3=C2H6
•CH3+•Br=CH3Br