3d representation of organic molecule class 11

3d representation of organic molecule class 11 || 3-d representation of organic molecule || What is the Size of hybrid orbital || Why carbon make a million of a compound or more Compound || What is the Classification of an organic compound based on structure || What are the Classification based on functional group 

3d representation of organic molecule class 11

This is the 2nd of organic compound chapter 12 of class 11. So please read  

1st part
Read part 1
Organic compound notes of class 11 chapter 12

If you’re a student you should write these notes in your notebook.

3-d representation of an organic molecule

3-d molecule represents the 2-d plane. There are many methods for the representation as a practical way like the ball-stick model,space-filling model but on a 2d plane, we use solid and wedge representation.

• Those which towards observer denoted by the solid line.Like this.

• This which is away from observer denoted by wedge line.👈Like this

• The plane line represents the plane of the paper.

What is the Size of a hybrid orbital?

The size of a hybrid orbital depends upon % of the S character. It is directly proportional to % of S-character. 

% of S= ½{SP}×100=50%, ⅓{SP2}×100=33.3%, ¼{SP3}×100=25%

Points to be noted

• Size: SP > SP2 > SP3

• Electron negativity is directly proportional to S%.

• Acidic property is directly proportional to S%.

• Bond length is indirectly proportional to Bond order.

Why does carbon make a million compounds or more Compounds?

1. Tetravalency

2. Catenation property

3. Carbon combined with metal as well as non-metal with metal Compound is called an organometallic compound.

4. Carbon shows the property of the isomer.

5. There are many Organic compounds. So it makes study convenient classification is required.

What is the Classification of organic compounds based on structure?

1. Acyclic or Aliphatic compound:- Organic compound which is in straight or branch chain is called Acyclic or  Aliphatic compound.

example:CH3CH2CH3

2. Cyclic compound:- Organic compound in which carbon arranged in a ring is called a cyclic compound. if the ring is one this is called monocyclic and If the ring is more than one, this is called polycyclic.

Further cyclic compound classifies into two parts:

1. Alicyclic:- a cyclic compound whose property generally match with allopathic not aromatic is called alicyclic. This compound is classified into two parts:

1. Homocyclic:- Alicyclic compound which contains only a ring of carbon atom is called the Homocyclic compound.

2. Heterocyclic compound:- Alicyclic compound which contains a ring of a carbon atom as well as another atom is called a heterocyclic compound.

2. Aromatic compound:- compound which has a special type of aroma is called an aromatic compound. This compound is classified into two parts:-

1. Benzenoid:- Aromatic compound which contains benzene ring is called benzenoid.

2. Non-benzenoid:- Aromatic compound which not contain benzene ring is called non-benzenoid.

What is the Classification based on the functional group?

Functional group:- Atom or group of atom attach with a network of hydrocarbon and decide chemical property of organic compound is called a functional group. The network of hydrocarbon decide physical property and the functional group decide chemical property. The hydrocarbon part is also called the residual part.

Methane:CH4 -(minus) H (Framework of hydrocarbon)👆👆

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