Radical Halogenation of Alkanes
This quiz covers the key concepts of radical chlorination and bromination of alkanes, including the formation of 1-chlorobutane and 2-chlorobutane. It delves into the stability of radicals, regiochemistry, and the principles governing the reactivity and selectivity of chlorine and bromine radicals. Test your understanding of these important organic chemistry principles.
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Radical Halogenation of Alkanes
Quiz • 16 Questions
Study Notes
2 min • Summary
Radical Halogenation of Alkanes - Podcast
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Materials
List of Questions16 questions
- Question 1
- It is highly unstable.
- It does not occur.
- It is endothermic.
- It is exothermic.
- Question 2
- The lower energy species.
- The higher energy species.
- An intermediate product.
- The starting material.
- Question 3
- Bromine radicals show no selectivity.
- Bromine radicals create a racemic mixture.
- Bromine is perfect for all reactions.
- Bromine radicals do not form stable intermediates.
- Question 4
- Preference for the less substituted halide.
- Complete lack of reaction.
- Formation of a homogenous mixture of products.
- Formation of only the more substituted halide.
- Question 5
- Fluorine radicals react too violently to be useful.
- Fluorine radicals are too weak to react.
- Iodine radicals are highly reactive.
- Iodine radicals are perfect for chain propagation.
- Question 6
- Radicals are always at higher energy levels.
- Radicals have more bonding electrons.
- Radicals are inherently unstable.
- Radicals have half-filled p-orbitals.
- Question 7
- HBr promotes rearrangement.
- HBr shows preference for Markovnikov addition without peroxide.
- HBr and HI behave identically.
- HBr only adds to alkenes in the presence of heat.
- Question 8
- Creation of a single product.
- Formation of a stable carbocation.
- Production of a pair of enantiomers.
- No reaction occurs.
- Question 9
- 3.8:1
- 4:1
- 6:1
- 2:1
- Question 10
- The probability of hydrogen collision and reactivity
- The number of hydrogen atoms available
- The overall energy of the radical
- The strength of the C-H bond
- Question 11
- 6 methyl and 4 methylene
- 10 methyl and 2 methylene
- 8 methyl and 3 methylene
- 5 methyl only
- Question 12
- Weaker H-Bromine bond
- Lower stability of bromine radicals
- Higher steric hindrance
- Stronger interference from other radicals
- Question 13
- 2
- 5
- 3
- 4
- Question 14
- Tertiary product
- Secondary product
- Primary product
- Quaternary product
- Question 15
- 21% 1-chlorobutane, 79% 2-chlorobutane
- 29% 1-chlorobutane, 71% 2-chlorobutane
- 40% 1-chlorobutane, 60% 2-chlorobutane
- 10% 1-chlorobutane, 90% 2-chlorobutane
- Question 16
- Presence of secondary radicals
- Reactivity of the radical formed
- Energy of the resultant bonds formed
- Number of products generated