Shweta Thakur posted an Question
June 08, 2020 • 02:29 am 30 points
  • IIT JAM
  • Chemistry (CY)

Why alkenes have more milting point than alkanes plz expalin sir

why alkenes have more milting point than alkanes plz expalin sir

3 Answer(s) Answer Now
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  • Suman Kumar

    Alkenes display a weak dipole-dipole interactions due to the electron-attracting sp2carbon.

  • Suman Kumar

    Carbon & hydrogen have almost same eletronegativity. But in alkene carbon is sp2 hybridized due to which eletronegativity of carbon increase hence the eletronegativity difference between carbon and hydrogen increase which induce dipole moment same as in case of Hcl. Alkene attracts other alkene molecule. This intermolecular force is responsible for higher mp & bp for alkene which is not present in alkane

  • Suman Kumar best-answer

    Sweta intermolecular force is responsible for melting & boiling point. Alkane is completely non polar but alkene have little dipole moment. Dipole moment mean there is charge separation.

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    Dinesh khalmaniya 1 Best Answer

    check it

    cropped8748272130586724200.jpg
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    sir polarizibility means diffusion of electrons then tmean electron are spread not concentrated as in sigma bond then why polarization increases force of attraction I mean to say electron kitne close honge itne attraction hogi n

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    Polarisability mean charge distribution. that mean more the charge more is the attractio between charge atoms

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    please accept the ans if you got it

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    ok

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    sir

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    thanku

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    please accept the answer

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    Suresh khokhar best-answer

    follow the instructions

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    sir polarizibility means diffusion of electron electron are spread not concentrated as in sigma bond then why polarizibility increases force of attraction I mean to say when the electron are close then only force of attraction is higher ??

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    the mean of diffusion of electron electron are separated towards high electronegative atom. due to this charge generate and opposite charge attract each other

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    ok

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