Chemistry · General methods of preparation, properties and reactions, nature of C-X bond, mechanisms of substitution reactions
The decreasing order of boiling points of alkyl halides is:
The decreasing order of boiling points of alkyl halides is:
- A. \( R F>R C l>R B r>R I \)
- B. \( R B r>R C l>R I>R F \)
- C. \( R I>R B r>R C l>R F \)
- D. \( R C l>R F>R I>R B r \) E \( . R I>R F>R C l>R B r \)
Step-by-step solution
Boiling points of alkyl halides increase with increasing molecular mass and polarizability. As we go down the halogen group (F, Cl, Br, I), the size and number of electrons increase, leading to stronger London dispersion forces. Thus, RI has the highest boiling point, followed by RBr, RCl, and RF.
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