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Trick to Find Bond Order JEE Advanced || JEE Main || AIIMS || NEET Video Lecture
FAQs on Trick to Find Bond Order JEE Advanced -- JEE Main -- AIIMS -- NEET Video Lecture
| 1. How can I find the bond order in a molecule for exams like JEE Advanced, JEE Main, AIIMS, and NEET? |  |
Ans. To find the bond order of a molecule, you need to follow these steps:
1. Write the molecular orbital (MO) configuration for the molecule.
2. Count the number of bonding electrons and divide it by the number of bonding orbitals.
3. Count the number of antibonding electrons and divide it by the number of antibonding orbitals.
4. Subtract the number of antibonding electrons from the number of bonding electrons.
5. Divide the result by 2 to get the bond order.
| 2. What is the significance of bond order in chemistry exams like JEE Advanced, JEE Main, AIIMS, and NEET? | |
Ans. Bond order is a measure of the stability and strength of a chemical bond. It provides information about the strength of the bond and the length of the bond. A higher bond order indicates a stronger bond, while a lower bond order indicates a weaker bond. In exams like JEE Advanced, JEE Main, AIIMS, and NEET, bond order is important to understand the reactivity and properties of molecules.
| 3. Can you provide an example of calculating bond order for a molecule? | |
Ans. Sure! Let's take the molecule O2 as an example. The molecular orbital configuration of O2 is:
σ(1s)^2σ*(1s)^2σ(2s)^2σ*(2s)^2π(2px)^2π(2py)^2π*(2px)^1π*(2py)^1
Counting the number of bonding electrons (12) and antibonding electrons (2), we can calculate the bond order as follows:
Bond Order = (Number of Bonding Electrons - Number of Antibonding Electrons) / 2
= (12 - 2) / 2
= 10 / 2
= 5
Therefore, the bond order of O2 is 5.
| 4. How does bond order affect the stability of a molecule? | |
Ans. The bond order directly affects the stability of a molecule. A higher bond order indicates stronger bonding, which results in increased stability. This is because stronger bonds are more difficult to break, making the molecule more stable. On the other hand, a lower bond order indicates weaker bonding and a less stable molecule. Therefore, the higher the bond order, the more stable the molecule.
| 5. Is there a relationship between bond order and bond length? | |
Ans. Yes, there is a relationship between bond order and bond length. Generally, as the bond order increases, the bond length decreases. This is because a higher bond order indicates stronger bonding, which means the atoms are held closer together. As a result, the bond length decreases. Conversely, a lower bond order indicates weaker bonding, resulting in a longer bond length. So, there is an inverse relationship between bond order and bond length.
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Nov 24, 2024 Last updated |
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