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Hint: The stability of the carbocation is important because more is the stability of a carbocation more are the chances of the feasibility of the reaction. Carbocation consists of a positive on the carbon atom which is formed by the loss of an electron.
Complete step by step answer:
-In the given question, propene is given to us which is reacting with the hydrogen ion and we have to tell the intermediate product which will be formed.
-As we know that hydrogen ion is an electrophile because it tends to accept a pair of electrons and also consist of a positive charge.
-So, firstly the pi- bond present between central carbon and adjacent carbon breaks and two conditions are formed:
I)
-So, here the hydrogen atom attaches to the carbon which has an extra pair of electrons and the central gains a positive charge which is now known as carbocation or secondary carbocation.
-It is a secondary carbocation because it is connected to two carbon atoms.
II)
-Here, the carbocation formed is primary because it is connected to only one carbon atom.
-But as we know that primary carbocation is less stable than the secondary carbocation because more is the alkyl group attaches more will the electron density on the carbocation.
-This is so because the alkyl group is the electron-donating group and gives electron density to the neighbouring carbon.
-Hence, the intermediate formed will be the secondary carbocation.
So, the correct answer is “Option C”.
Note: As the name tells electrophilic addition reactions are those in which the electrophile attacks on the unsaturated bond. That’s why a compound must have a double or triple bond to undergo electrophilic addition reaction.
Complete step by step answer:
-In the given question, propene is given to us which is reacting with the hydrogen ion and we have to tell the intermediate product which will be formed.
-As we know that hydrogen ion is an electrophile because it tends to accept a pair of electrons and also consist of a positive charge.
-So, firstly the pi- bond present between central carbon and adjacent carbon breaks and two conditions are formed:
I)
-So, here the hydrogen atom attaches to the carbon which has an extra pair of electrons and the central gains a positive charge which is now known as carbocation or secondary carbocation.
-It is a secondary carbocation because it is connected to two carbon atoms.
II)
-Here, the carbocation formed is primary because it is connected to only one carbon atom.
-But as we know that primary carbocation is less stable than the secondary carbocation because more is the alkyl group attaches more will the electron density on the carbocation.
-This is so because the alkyl group is the electron-donating group and gives electron density to the neighbouring carbon.
-Hence, the intermediate formed will be the secondary carbocation.
So, the correct answer is “Option C”.
Note: As the name tells electrophilic addition reactions are those in which the electrophile attacks on the unsaturated bond. That’s why a compound must have a double or triple bond to undergo electrophilic addition reaction.
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