Which of the following are product of following reaction in the presence of diffused sunlight? CH4 + Cl2 →?
Correct answer: D. All of these
- A. CHCl3
- B. CCl4
- C. CH2Cl2, CH3Cl
- D. All of these
Explanation
Alkanes react with chlorine and bromine in the presence of sunlight or UV light or at high temperature resulting in the successive replacement of hydrogen atoms with halogens called halogenation. Extent of halogenation depends upon the amount of halogen used.Reaction of alkanes with fluorine is highly violent and results in a mixture of carbon, fluorinated alkanes and hydrofluoriq acid. Iodine does not substitute directly because the reaction is too slow and reversible. The order of reactivity of halog]ens is F2>Cl2>Br2>I2.Halogenation is believed to proceed through free radical mechanism. It involves the following three steps.
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About Chemistry of Hydrocarbons
Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
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