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Conformations of Alkanes Video Lecture | Chemistry Class 11 - NEET

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FAQs on Conformations of Alkanes Video Lecture - Chemistry Class 11 - NEET

1. What are conformations of alkanes?
Ans. Conformations of alkanes refer to the different spatial arrangements or shapes that an alkane molecule can adopt due to rotation around carbon-carbon single bonds. These conformations result in different orientations of the atoms in the molecule, while maintaining the same connectivity.
2. How are conformations of alkanes related to their physical properties?
Ans. Conformations of alkanes can significantly affect their physical properties. For example, the boiling point and melting point of an alkane can vary depending on its conformation. Conformations with more compact structures tend to have higher boiling points and melting points due to stronger intermolecular forces.
3. What is the most stable conformation of an alkane?
Ans. The most stable conformation of an alkane is usually the one with the lowest energy, known as the "staggered conformation." In this conformation, the carbon-carbon bonds are as far apart as possible, minimizing steric hindrance between the atoms. This results in a more stable and energetically favorable arrangement.
4. How do conformations of alkanes affect their reactivity?
Ans. Conformations of alkanes can influence their reactivity by affecting the accessibility of certain functional groups or reactive sites. For example, bulky substituents in certain conformations may hinder the approach of a reagent, leading to lower reactivity. Additionally, the stability of certain conformations can impact the ease of bond breaking or formation during chemical reactions.
5. Can conformations of alkanes be observed experimentally?
Ans. Conformations of alkanes cannot be directly observed experimentally due to their rapid interconversion at room temperature. However, their existence and properties can be inferred through various spectroscopic techniques such as nuclear magnetic resonance (NMR) spectroscopy and computational methods. These methods provide valuable information about the relative energies and populations of different conformations.
195 videos|337 docs|190 tests
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