A-LevelChemistryChemical bondingOct/Nov 2010Paper 1 Q11 Mark
The ability of an atom in a covalent bond to attract electrons to itself is called its electronegativity. The greater the difference between the electronegativities of the two atoms in the bond, the more polar is the bond. Which pair will form the most polar covalent bond between the atoms?
Achlorine and bromine
Bchlorine and iodine
Cfluorine and chlorine
Dfluorine and iodine
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The correct answer is D. This question tests the candidate's understanding of chemical bonding within the Chemistrysyllabus. The examiner's mark scheme requires...
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