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 Form 4 Chemistry Organic Chemistry II Questions and Answers

(a)Give the names of the following compounds
(i)# CH_3CH=CHCH_2CH_3#
fig20201015.JPG
(b) Ethane and Ethene react with bromine according to the equation given below.
(i)#C_2H_6(g)# +#Br_2 (g)##to##C_2H_5Br_2 (g)#+ HBr (g)
(ii) #C_2H_4 (g)# +#Br_2 (g)# #to##C_2H_4Br_2 (l)#
Name the type of bromination reaction that takes place in: (i) and (ii).
(c)Study the diagram below and answer the questions that follow.
fig20201016.JPG
(i)Write the equation for the combustion of butane
(ii) The PH of substances K was found to be less than 7. Explain this observation.
(d) The polymerization of tetra flouroathene (#C_2F_4#) is similar to that of ethene (#C_2H_4#)
(i) What is meant by the term polymerization?
(ii) Draw the structural formula of a portion of the polymer obtained from the monomer #C_2F_4#
(e)State two advantages that synthetic polymers have over natural polymers.

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