Question

Question 4 (a) What are the products would you expect from reaction of 1-bromo-1-methylcyclopentane with KOH in ethanol? Show the complete equation. (4 marks) (b) Give the structure of product for the reaction of cyclohexene with hot acidified potassium manganate(VII) (3 marks) c) CH3CH(OH)CH2CH3 (CH3)3COH A B Alcohols A and B are isomers. (i) Draw the structural formula of one another alcohol isomeric with A and B. (2 marks) (ii) What reagent would you use to dehydrate A and B to alkenes? Draw the structural formulae of two alkenes that are obtained by dehydrating A. (3 marks) (iii) Describe a reaction (reagent and observation) by which A could be distinguished from B. (3 marks) (iv) What are the products obtained when A and B is subjected to oxidation with Cr2O72- under acidic conditions? (3 marks) d) Draw the structures for the following: (i) tert-butyl isopropyl ether (ii) 2,4,6 –trinitroaniline (iii) 2-chlorophenol (iv) 4-bromo-6,6-dimethyl-2-heptene (v) phenylmethanol (5 marks) e) Draw the structure for the oxidation of 2,3-hydroxybutanal in excess KMnO4 acidic. (2 marks)

          Question 4
(a) What are the products would you expect from reaction of 1-bromo-1-methylcyclopentane with KOH in ethanol? Show the complete equation.
(4 marks)
(b) Give the structure of product for the reaction of cyclohexene with hot acidified potassium manganate(VII)
(3 marks)
c)
CH3CH(OH)CH2CH3
(CH3)3COH
A
B
Alcohols A and B are isomers.
(i) Draw the structural formula of one another alcohol isomeric with A and B.
(2 marks)
(ii) What reagent would you use to dehydrate A and B to alkenes? Draw the structural formulae of two alkenes that are obtained by dehydrating A.
(3 marks)
(iii) Describe a reaction (reagent and observation) by which A could be distinguished from B.
(3 marks)
(iv) What are the products obtained when A and B is subjected to oxidation with Cr2O72- under acidic conditions?
(3 marks)
d) Draw the structures for the following:
(i) tert-butyl isopropyl ether
(ii) 2,4,6 –trinitroaniline
(iii) 2-chlorophenol
(iv) 4-bromo-6,6-dimethyl-2-heptene
(v) phenylmethanol
(5 marks)
e) Draw the structure for the oxidation of 2,3-hydroxybutanal in excess KMnO4 acidic.
(2 marks)

Question 4
(a) What are the products would you expect from reaction of 1-bromo-1-methylcyclopentane with KOH in ethanol? Show the complete equation.
(4 marks)
(b) Give the structure of product for the reaction of cyclohexene with hot acidified potassium manganate(VII)
(3 marks)
c)
CH3CH(OH)CH2CH3
(CH3)3COH
A
B
Alcohols A and B are isomers.
(i) Draw the structural formula of one another alcohol isomeric with A and B.
(2 marks)
(ii) What reagent would you use to dehydrate A and B to alkenes? Draw the structural formulae of two alkenes that are obtained by dehydrating A.
(3 marks)
(iii) Describe a reaction (reagent and observation) by which A could be distinguished from B.
(3 marks)
(iv) What are the products obtained when A and B is subjected to oxidation with Cr2O72- under acidic conditions?
(3 marks)
d) Draw the structures for the following:
(i) tert-butyl isopropyl ether
(ii) 2,4,6 –trinitroaniline
(iii) 2-chlorophenol
(iv) 4-bromo-6,6-dimethyl-2-heptene
(v) phenylmethanol
(5 marks)
e) Draw the structure for the oxidation of 2,3-hydroxybutanal in excess KMnO4 acidic.
(2 marks)

Added by Albert C.

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