Assertion: The boiling points of alkyl halides decrease in the order: RI>RBr>RCl>RF
Reason : The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarbon of comparable molecular mass.
(i) Assertion and reason both are correct and reason is correct explanation of assertion.
(ii) Assertion and reason both are wrong statements.
(iii) Assertion is correct but reason is wrong statement.
(iv) Assertion is wrong but reason is correct statement.
(v) Assertion and reason both are correct statements but reason is not correct explanation of assertion.
Assertion: The boiling points of alkyl halides decrease in the order: RI>RBr>RCl>RF
Reason : The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarbon of comparable molecular mass.
(i) Assertion and reason both are correct and reason is correct explanation of assertion.
(ii) Assertion and reason both are wrong statements.
(iii) Assertion is correct but reason is wrong statement.
(iv) Assertion is wrong but reason is correct statement.
(v) Assertion and reason both are correct statements but reason is not correct explanation of assertion.
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1 Answer
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This is a assertion and reason answer type question as classified in NCERT Exemplar
Because of the size of the halogen atom, the boiling temperatures of alkyl halides drop in the specified sequence. With the greatest atomic number, iodide has the most electrons, resulting in increased Van Der Waals forces and a higher boiling point.
Correct Answer: Option (v)
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