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Haloalkanes and Haloarenes One Shot | Class12 | CBSE 2024 |πŸ”₯ Haritha Ma'am

Vedantu Master Tamil・16 minutes read

Solving NCERT book questions, identifying compounds and isomers, determining chemical properties and reactions in organic chemistry. Resonance stabilization in reactions indicates stability, while reaction pathways follow specific mechanisms leading to product formation.

Insights

  • Resonance stabilization plays a crucial role in determining the stability of chemical compounds, especially in the presence of hydrogen, as seen in the explanation for the correct answer option B.
  • The reaction pathway for certain chemical reactions, like the addition of HBr in the presence of water, predominantly follows the SN1 mechanism, with weak nucleophiles favoring tertiary reactions and resulting in specific final products.

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Recent questions

  • What is the compound C6H5 classified as?

    Aromatic

  • What is the chemical formula for chloroform?

    Trichloromethane

  • What is the difference in melting points between ortho and para dibromo benzene isomers?

    Ortho has a lower melting point

  • What are halogen alkanes that exist as liquids at room temperature?

    Bromoethane and chloroethane

  • What is the mechanism of dehydrohalogenation reaction in haloalkanes?

    Beta elimination

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Summary

00:00

Chemistry: Isomers, Halogen Alkanes, Chiral Carbon

  • Solving as many questions as possible from NCERT book back questions
  • Identifying secondary isop chloride and its characteristics
  • Determining the compound C6H5 and its classification
  • Naming the chemical formula for chloroform as trichloromethane
  • Comparing melting points of ortho and para dibromo benzene isomers
  • Identifying halogen alkanes existing as liquids at room temperature
  • Discussing boiling points of isomeric diiodides
  • Explaining optical isomerism and chiral carbon
  • Defining enantiomers and chiral carbon
  • Describing dehydrohalogenation reaction in haloalkanes as beta elimination and its mechanism

38:10

Resonance stabilization favors SN1 mechanism in chemistry.

  • Resonance stabilization makes option B the correct answer due to its stability, especially in the presence of hydrogen, leading to a highly stable intermediate.
  • The reaction pathway predominantly follows the SN1 mechanism with weak nucleophiles favoring this tertiary reaction, while the addition of HBr in the presence of water results in nucleophilic addition to the carbon with fewer hydrogens, leading to the final product CH3CH2CH2Br.
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