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                                09- 0.5
                                10 - 1.0
1-  0.5                     11 - 1.5
2 -    1                     12 - 2.0
3 - 0.5                     13 - 2.5
4 -    0                     14 - 3
5 -  0.5                    15 - 2.5
6 -    1                      16 -2.0
7 -  0.5                     17 - 1.5
8 -     1                      18 - 1.0
                                 19 - 0.5
                                 20- 00

In above serious from 1 to 8 the trick is 5150-5150 only put decimal in front of five .

And from 9 to 20 first write MOT of no.14 is 3 then subtract 0.5 

If bond order is in fraction like , 0.5 ,1.5 ,2.5 etc then it's paramagnetic and other remaining are diamagnetic other than 10 and 16 they are paramagnetic ...
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FAQs on MOT tricks in chemical bonding - NEET

1. What are MOT tricks in chemical bonding?
Ans. Molecular Orbital Theory (MOT) tricks in chemical bonding refer to the various strategies and techniques used to analyze and understand the formation and properties of chemical bonds using the principles of quantum mechanics. These tricks involve the application of mathematical calculations and models to determine the distribution and behavior of electrons in molecular orbitals.
2. How does MOT explain chemical bonding?
Ans. According to Molecular Orbital Theory, when two atoms come close to each other, their atomic orbitals combine to form molecular orbitals. These molecular orbitals can either be bonding orbitals, where electrons are shared between the atoms, or antibonding orbitals, where electrons are not shared. The formation of bonding orbitals leads to the stability and strength of chemical bonds, while antibonding orbitals weaken or prevent bond formation.
3. What are some key concepts in MOT for understanding chemical bonding?
Ans. Some key concepts in Molecular Orbital Theory (MOT) that are crucial for understanding chemical bonding include: - Bonding and antibonding orbitals: The formation of bonding orbitals results in stable chemical bonds, while the formation of antibonding orbitals weakens or prevents bond formation. - Electron occupancy: The electron occupancy of molecular orbitals follows the Aufbau principle and Hund's rule, determining the stability and properties of the molecule. - Bond order: The difference between the number of electrons in bonding and antibonding orbitals determines the bond order, which represents the strength and length of a chemical bond. - Energy level diagrams: Energy level diagrams depict the relative energies of atomic and molecular orbitals, providing insights into the stability and reactivity of molecules.
4. How can MOT tricks be applied to analyze complex chemical bonding situations?
Ans. MOT tricks can be applied to analyze complex chemical bonding situations by considering the following approaches: - Linear combination of atomic orbitals (LCAO): LCAO is used to combine atomic orbitals mathematically to form molecular orbitals, allowing the determination of bond strengths and electron distributions. - Symmetry considerations: Analyzing the symmetry of molecular orbitals helps predict the presence and properties of chemical bonds in complex molecules. - Hybridization: Hybridization techniques can be applied to determine the types and arrangement of atomic orbitals involved in bond formation. - Molecular orbital diagrams: Constructing molecular orbital diagrams provides a visual representation of the electron distribution in molecules, aiding in understanding complex bonding situations.
5. How does MOT differ from Valence Bond Theory (VBT) in explaining chemical bonding?
Ans. MOT and Valence Bond Theory (VBT) are two different approaches to explain chemical bonding: - MOT considers the combination of atomic orbitals to form molecular orbitals, providing a more comprehensive understanding of electron distribution and bond properties. - VBT focuses on the overlapping of atomic orbitals and the concept of resonance to explain chemical bonding, emphasizing the formation of localized bonds. - MOT provides a more accurate description of delocalized bonds, such as in conjugated systems, while VBT is more suitable for explaining localized bond situations. - Both theories have their strengths and limitations, and their application depends on the complexity of the bonding situation being studied.
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