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In the following question, a statement of assertion is followed by a statement of reason.Mark the correct option
Assertion:Boiling point of hydrogen fluoride is highest among hydrogen halides.
Reason:Fluorine has highest electronegativity.
Both assertion and reason are true and reason is the correct explanation of assertion.
Both assertion and reason are true but reason is not the correct explanation of assertion.
Assertion is true but reason is false.
Both assertion and reason are false.
Answers (1)
Boiling point of hydrogen fluoride(HF) is highest i.e.293K while the boiling point of HI, HBr, and HCl are 238K, 206K and 189K respectively. It is due to the highest electronegativity of fluorine H-F has hydrogen bonding, and have the highest dipole moment , results in strong dipole-dipole interactions and london forces which makes the boiling point of hydrogen fluoride exceptionally high.
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