What is the selectivity ratio of chlorine?
This gives us a ratio of 55:15 , or 3.66. So for this reaction, the free radical chlorination of propane at 25°C, chlorine is 3.66 times more selective for secondary hydrogens than for primary hydrogens.
How many Monosubstituted products can be formed when butane reacts with chlorine?
The butane – chlorine substitution reaction to give two possible isomeric (C4H9Cl) monosubstitution products.
How do you determine the number of Monochlorination products?
To find the number of monochlorinated products, the only way is to find the number of structures drawn. Complete answer: Monochlorination of an alkane involves substituting one of the hydrogen in the alkane with a chlorine atom. This is achieved by treating the alkane with chlorine in the presence of UV light.
How do you calculate relative reactivities?
The relative reactivity is calculated by dividing the percent of a compound (as determined by the GC) by the statistical factor of that compound. The statistical factor is the number of hydrogens available for reaction at each of the carbons.
Why is br2 more selective than cl2?
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 chlorination more or less selective than bromination?
The Transition State For Chlorination Resembles The Reactants (An “Early” Transition State) Which Are Close Together In Energy. So Selectivity Is Low. The Transition State For Bromination Resembles The Products (A “Late” Transition State) Which Are Farther Apart In Energy. So Selectivity Is High.
How many Monosubstituted products can be derived?
There are 4 different types of carbon so there will be 4 monosubstituted products.
What is monosubstituted product?
Illustrated Glossary of Organic Chemistry – Monosubstituted. Monosubstituted: A molecule or functional group in which only one hydrogen has been replaced by another atom or group. These substituents are not limited to methyl groups as shown here.
How many Monochlorination products are possible for 2?
Eight monochlorinated products (including stereoisomers) are possible of isohexane.
How many Monochlorination products may be obtained when the alkane?
∴ Total 8 monochloro products.
What is chlorination of methane?
Chlorination of methane is a substitution reaction because chlorine atom replaces hydrogen atom from the methane molecule. The reaction occurs as follows: CH4(g)+Cl2 (g)sunlight−−−−→CH3Cl (g)+HCl (g)Methane Chlorine Chloro Hydrogen methane chloride.
What is relative reactivity?
Relative reactivity. The concept of reactivity means the relative activity of a chemical compound when reacting with other compounds. To provide a ‘fair’ test the compounds are usually compared with a specific ‘standard’ compound.
Why chlorination is faster than bromination?
Chlorination is faster than bromination because chlorine is more reactive.
Which one is more selective chlorination or bromination?
Reason: Bromination of alkane is highly selective compared to chlorination reaction.
Why chlorination is more reactive and less selective?
Chlorination is less selective than bromination because chlorination has smaller differences in activation energy for attack at 1°, 2°, and 3° positions. Consider the halogenation of propane at the 1° and 2° positions. Formation of the different halopropanes occurs during the chain propagation steps.
What gives only one Monosubstituted product?
m-Dinitrobenzene will give only monosubstituted product.
How many Monosubstituted products are formed?
How many chlorinated products are possible for 2 Methylpropane?
Solution. Possible monochlorination products for 2-methylbutane: 2-Methylbutane 2-Chloro-2-methylbutane 2-Chloro-3-methylbutane 1-Chloro-2-methylbutane 1-Chloro-3-methylbutane.
How many mono chlorination products are possible for a 2 Methylpropane?
1 Answer. a. Possible monochlorination products for 2- methylpropane : b.