Interpretation:
The structure formulas, the geometry around the carbon atoms and the polarity of two molecules having the molecular formula of
Concept introduction:
Structural formula: The representation of each atom with their symbol in a bond-line structure of a compound is called as structural formula.
The compounds having general formula
Molecular geometry can be predicted from the structure by using the valence-shell Electron-pair repulsion (VSEPR) model.
- Count the number of valence electron pairs (bond pairs and lone pairs).
- Assume that the valence electron pairs form a structure that allows them to be as far away from each other as possible.
- If there are only two bond pair electrons, the molecule is linear.
- If there are three bond pair electrons, the molecule is shaped like a trigonal planar.
- If there are four bond pair electrons, the molecule is shaped as a regular tetrahedral.
- Repulsion between lone pair-bond pair of electrons effect the geometry of molecules.
The polarity of a bond is arises due to the difference in electronegativity of atoms present in that bonding.
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