Which of the following is most reactive for halogenation?
Hence fluorine is the most reactive halogen atom in the halogenation of alkane as it requires the least energy for fission.
What is the order of reactivity of halogen in free radical halogenation?
The reactivity of the halogens decreases in the following order: F2 > Cl2 > Br2 > I2. We shall confine our attention to chlorine and bromine, since fluorine is so explosively reactive it is difficult to control, and iodine is generally unreactive.
Which halogen is most selective in a free radical halogenation reaction?
Sulfuryl chloride (SO2Cl2) can also be used as a chlorinating agent and reacts with alkyl radicals in a chain reaction. The SO2Cl radical is less reactive than the Cl radical and is therefore more selective.
What is the reactivity order of free radicals?
1. Stability Of Free Radicals Increases In The Order Methyl < Primary < Secondary < Tertiary.
What is the mechanism of halogenation of alkanes?
Nature of the Mechanism of Alkanes’ Halogenation In the presence of either heat or ultraviolet light (UV), the halogen reaction with an alkane results in a haloalkane formation (which is an alkyl halide). This phenomenon can be explained using the reaction mechanism – A mechanism to halogenate.
Which is the most reactive alkyl halide?
The high reactivity of alkyl halides can be due to the polarisation of carbon -halogen bonds. Due to this, carbon develops a partial positive charge and halogens develop a partial negative charge. Thus, bromopropane is the most reactive compound.
What are the 3 types of alkane reactions?
However, there are a few classes of reactions that are commonly performed with alkanes.
- Oxidation Reactions. The most important reaction that alkanes undergo is combustion.
- Thermal Cracking.
What is the order of reactivity of HCl HBr Hi with alcohol?
When treated with HBr or HCl alcohols typically undergo a nucleophilic substitution reaction to generate an alkyl halide and water. Alcohol relative reactivity order : 3o > 2o > 1o > methyl. Hydrogen halide reactivity order : HI > HBr > HCl > HF (paralleling acidity order).
Why is br2 more selective?
Bromination of alkanes occurs by a similar mechanism, but is slower and more selective because a bromine atom is a less reactive hydrogen abstraction agent than a chlorine atom, as reflected by the higher bond energy of H-Cl than H-Br.
Is Chloropropane or 2-Chloropropane more stable?
Question: In the free-radical chlorination of propane,A) 1-chloropropane is the major product becuase the radicalintermediate is more stable.B) 2-chloropropane is the major product because the radicalintermediate is more stable. C) 1-chloropropane is the major product because the radicalintermediate is formed faster.
Which free radical is most stable formula?
Allyl radical is in turn less stable than benzyl free radical. Therefore, the most stable free radical is benzyl free radical.
What is the most stable radical?
Specifically, tertiary radical is most stable and the primary and methyl radicals are least stable, that follow the same trend as the stability of carbocations.