Turn on thread page Beta

    No problem!

    Generally, yes polar molecules are more reactive. For example, benzene is unable to polarise bromine so they can't react, whereas phenol can; bromine is polarised and is therefore able to react. Halogens are very electronegative: Fluorine is the most at 4.0. H-Cl, eg, is held by a polar covalent bond.
    Similarly, iodoalkanes have polar covalent bonds:

    Iodine: 2.66; Hydrogen: 2.1. The elctronegativity difference = 0.56, and any value between 0 and 1.8 is polar covalent. (if 0 = covalent - non polar, and if >1.8 = ionic)

    Iodoalkanes are more reactive than alkanes because they do have polar covalent bonds.
Submit reply
Turn on thread page Beta
Updated: October 27, 2017

University open days

  1. Norwich University of the Arts
    Postgraduate Open Days Postgraduate
    Thu, 19 Jul '18
  2. University of Sunderland
    Postgraduate Open Day Postgraduate
    Thu, 19 Jul '18
  3. Plymouth College of Art
    All MA Programmes Postgraduate
    Thu, 19 Jul '18
How are you feeling in the run-up to Results Day 2018?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.