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Which of the following hydrocarbon is formed, when benzene reacts with three chlorine molecules under UV condition?
- a)Hexachlorobenzene
- b)Benzene hexachloride
- c)Chlorobenzene
- d)Chlorohexane
Correct answer is option 'B'. Can you explain this answer?
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Which of the following hydrocarbon is formed, when benzene reacts with...
Under ultra-violet light, three chlorine molecules add to benzene to produce benzene hexachloride. It is also known as gammaxene. Its chemical formula is C6H6Cl6 and undergoes addition reaction.
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Which of the following hydrocarbon is formed, when benzene reacts with...
Reactants:
Benzene (C6H6) + Chlorine (Cl2)
Conditions:
UV light
Product:
Benzene hexachloride (C6H6Cl6)
Explanation:
- Benzene is a cyclic hydrocarbon with the molecular formula C6H6.
- Chlorine is a diatomic molecule with the formula Cl2.
Reaction:
Under UV light conditions, benzene reacts with chlorine to form benzene hexachloride. The reaction is an example of a substitution reaction, where chlorine atoms replace the hydrogen atoms in benzene.
The reaction can be summarized as follows:
C6H6 + 3Cl2 → C6H6Cl6
Explanation of the reaction steps:
1. Initiation:
UV light provides the energy required to break the chlorine molecule into chlorine atoms. The bond between the two chlorine atoms is weakened, resulting in the formation of two highly reactive chlorine radicals (Cl•).
Cl2 + UV light → 2Cl•
2. Propagation:
The chlorine radical (Cl•) reacts with benzene, resulting in the substitution of one of the hydrogen atoms in benzene with a chlorine atom. This process can occur multiple times, leading to the substitution of up to six hydrogen atoms.
Cl• + C6H6 → C6H5Cl + H•
C6H5Cl + Cl2 → C6H4Cl2 + HCl
C6H4Cl2 + Cl2 → C6H3Cl3 + HCl
C6H3Cl3 + Cl2 → C6H2Cl4 + HCl
C6H2Cl4 + Cl2 → C6HCl5 + HCl
C6HCl5 + Cl2 → C6Cl6 + HCl
3. Termination:
The reaction terminates when all the hydrogen atoms in benzene have been replaced by chlorine atoms. The final product is benzene hexachloride (C6H6Cl6), also known as hexachlorobenzene.
C6H6 + 3Cl2 → C6Cl6 + 6HCl
Therefore, the correct answer is option B) Benzene hexachloride (C6H6Cl6).
Benzene (C6H6) + Chlorine (Cl2)
Conditions:
UV light
Product:
Benzene hexachloride (C6H6Cl6)
Explanation:
- Benzene is a cyclic hydrocarbon with the molecular formula C6H6.
- Chlorine is a diatomic molecule with the formula Cl2.
Reaction:
Under UV light conditions, benzene reacts with chlorine to form benzene hexachloride. The reaction is an example of a substitution reaction, where chlorine atoms replace the hydrogen atoms in benzene.
The reaction can be summarized as follows:
C6H6 + 3Cl2 → C6H6Cl6
Explanation of the reaction steps:
1. Initiation:
UV light provides the energy required to break the chlorine molecule into chlorine atoms. The bond between the two chlorine atoms is weakened, resulting in the formation of two highly reactive chlorine radicals (Cl•).
Cl2 + UV light → 2Cl•
2. Propagation:
The chlorine radical (Cl•) reacts with benzene, resulting in the substitution of one of the hydrogen atoms in benzene with a chlorine atom. This process can occur multiple times, leading to the substitution of up to six hydrogen atoms.
Cl• + C6H6 → C6H5Cl + H•
C6H5Cl + Cl2 → C6H4Cl2 + HCl
C6H4Cl2 + Cl2 → C6H3Cl3 + HCl
C6H3Cl3 + Cl2 → C6H2Cl4 + HCl
C6H2Cl4 + Cl2 → C6HCl5 + HCl
C6HCl5 + Cl2 → C6Cl6 + HCl
3. Termination:
The reaction terminates when all the hydrogen atoms in benzene have been replaced by chlorine atoms. The final product is benzene hexachloride (C6H6Cl6), also known as hexachlorobenzene.
C6H6 + 3Cl2 → C6Cl6 + 6HCl
Therefore, the correct answer is option B) Benzene hexachloride (C6H6Cl6).
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Which of the following hydrocarbon is formed, when benzene reacts with three chlorine molecules under UV condition?a)Hexachlorobenzeneb)Benzene hexachloridec)Chlorobenzened)ChlorohexaneCorrect answer is option 'B'. Can you explain this answer?
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