Question

Alkanes and alkenes- the mechanisms Name: 1. Chlorination of ethane follows a free-radical substitution mechanism. This mechanism is similar to that which occurs when methane is chlorinated. The overall equation for the reaction of ethane to form chloroethane is given below. C2H6 + Cl2 ? C2H5Cl + HCl State the conditions (1) Name the mechanism (1) Outline a mechanism for this reaction (naming the steps) (7) Show how butane can be formed in this reaction (1) Total 10 2. Name and outline a mechanism for the reaction to give 2-bromo-2-methylbutane as the major product. (CH3)2C = CHCH3 + HBr ? (CH3)2CBrCH2CH3 (5) (ii) The minor product in this reaction mixture is 2-bromo-3-methylbutane. Explain why this bromoalkane is formed as a minor product. (2) Total 7

          Alkanes and alkenes- the mechanisms
Name:

1. Chlorination of ethane follows a free-radical substitution mechanism. This mechanism is similar to that which occurs when methane is chlorinated. The overall equation for the reaction of ethane to form chloroethane is given below.
C2H6 + Cl2 ? C2H5Cl + HCl

State the conditions
(1)
Name the mechanism
(1)
Outline a mechanism for this reaction (naming the steps)
(7)
Show how butane can be formed in this reaction
(1)
Total 10

2. Name and outline a mechanism for the reaction to give 2-bromo-2-methylbutane as the major product.
(CH3)2C = CHCH3 + HBr ? (CH3)2CBrCH2CH3
(5)
(ii) The minor product in this reaction mixture is 2-bromo-3-methylbutane. Explain why this bromoalkane is formed as a minor product.
(2)
Total 7

Alkanes and alkenes- the mechanisms
Name:

1. Chlorination of ethane follows a free-radical substitution mechanism. This mechanism is similar to that which occurs when methane is chlorinated. The overall equation for the reaction of ethane to form chloroethane is given below.
C2H6 + Cl2 ? C2H5Cl + HCl

State the conditions
(1)
Name the mechanism
(1)
Outline a mechanism for this reaction (naming the steps)
(7)
Show how butane can be formed in this reaction
(1)
Total 10

2. Name and outline a mechanism for the reaction to give 2-bromo-2-methylbutane as the major product.
(CH3)2C = CHCH3 + HBr ? (CH3)2CBrCH2CH3
(5)
(ii) The minor product in this reaction mixture is 2-bromo-3-methylbutane. Explain why this bromoalkane is formed as a minor product.
(2)
Total 7

Added by Jes-S A.

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