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Question
Assertion :Cis form will always have more boiling point than trans form. Reason: Boiling point depends on dipole moment, greater the dipole moment greater the boiling point.
Assertion :Cis form will always have more boiling point than trans form. Reason: Boiling point depends on dipole moment, greater the dipole moment greater the boiling point.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Cis form will always have a higher boiling point than the trans form because in cis isomer, bond dipole moments combine to give an overall molecular dipole. So, there are intermolecular dipole–dipole forces, which add to the London dispersion forces and raise the boiling point.
Cis form will always have a higher boiling point than the trans form because in cis isomer, bond dipole moments combine to give an overall molecular dipole. So, there are intermolecular dipole–dipole forces, which add to the London dispersion forces and raise the boiling point.
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