Question

The decreasing order of boiling points of alkyl halides is

• A. $RF > RCI > RBr > RI$
• B. $RBr > RCI > RI > RF$
• C. $RI > RBr > RCI > RF$
• D. $RCI >RF > RI > RBr$

Answer 1

Answer: (C)

$RI > RBr > RCI > RF$

Answer 2

As the size of halogen atom increases, boiling point of alkyl halides increases. Thus, the correct order of boiling point is

$R I >R Br >R Cl >R F$