Reaction Mechanism -Important Questions & Preparation Tips

The detailed processes by which chemical substances are transformed into other substances while a chemical reaction takes place.
The reactions themselves may involve the interactions of atoms, molecules, ions, electrons, and free radicals.It is very important to study the detailed processes of reaction mechanisms for many reasons, including the help it gives in understanding and controlling chemical reactions.

Created On: Dec 4, 2012 17:42 IST
Modified On: Jul 6, 2013 13:00 IST

The detailed processes by which chemical substances are transformed into other substances while a chemical reaction takes place.
The reactions themselves may involve the interactions of atoms, molecules, ions, electrons, and free radicals.
It is very important to study the detailed processes of reaction mechanisms for many reasons, including the help it gives in understanding and controlling chemical reactions.  

In this article you will get the clue that from where and how the questions are being framed from the topics like carbonium ion, carbanion and free radical.
  
In all three structures R represent an alkyl group such as methyl, CH3, or ethyl, CH3CH2.

So pay attention on the following terms / sentence / point while you study all the three topics:
1. Number of filled and vacant orbital
2. Number of bond pairs
3. Number of lone pairs
4. Shape of the species
5. Bond angles
6. Hybridization on the central carbon atom
7. Magnetic properties like diamagnetic or paramagnetic
8. Colored or uncolored
9. Lewis acid or lewis base
10. Positive electrophile / negative electrophile / neutral electrophile
11. Total number of paired and unpaired electron
12. How stability depends on
• +I and –I effect
• Hypercojugation effect
• +R AND –R effect
• % ‘S’ character
13. Nature of the final product if these species are formed as an intermediate product.


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