Propagation step should be written for the addition of hydrogen bromide to the 1-methy cyclohexene in the presence of a peroxide. Concept introduction: Radical or free radical: unpaired valence electron of an atom, molecule, or ion is called as radical. Radical chain reaction takes place in three steps namely, Initiation step –heat or light supplied, breaks the bond and creates radicals from a halogen molecule Propagation step –radical from initiation step reacts with alkane compound forming alkyl radical, this again breaks the bond of halogen molecule and results in monohalogenated alkane and halogen radical. This process get repeated a number of time. Termination step –the combination of any two radicals resulting in all the electrons to be paired and thus the reaction gets terminated.

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Chapter 12.7, Problem 13P

Interpretation Introduction

Interpretation:

Propagation step should be written for the addition of hydrogen bromide to the 1-methy cyclohexene in the presence of a peroxide.

Concept introduction:

Radical or free radical: unpaired valence electron of an atom, molecule, or ion is called as radical.

Radical chain reaction takes place in three steps namely,

Initiation step –heat or light supplied, breaks the bond and creates radicals from a halogen molecule

Propagation step –radical from initiation step reacts with alkane compound forming alkyl radical, this again breaks the bond of halogen molecule and results in monohalogenated alkane and halogen radical. This process get repeated a number of time.

Termination step –the combination of any two radicals resulting in all the electrons to be paired and thus the reaction gets terminated.

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