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Pearson Edexcel IAL Chemistry 3.14 Bonding continuum & polarity

Practise using electronegativity differences, dipoles and electron-density evidence to place bonds on the ionic-covalent continuum.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • use electronegativity data to compare ionic and covalent character in chlorides
  • explain bond polarity by assigning δ+ and δ- from the more electronegative atom
  • interpret dipole or electron-density diagrams for polar covalent bonds

3.15—Distinguish between polar bonds and polar molecules and predict whether or not a given molecule is likely to be polar question 1

[Maximum number: 3]

This question is about alkenes.

Another compound, Y, has the structure shown.

Figure for Question 3.15—Distinguish between polar bonds and polar molecules and predict whether or not a given molecule is likely to be polar question 1 — Edexcel A-Level Chemistry AS

A student stated that
‘Compound Y has polar bonds so it is a polar molecule’.
Comment on this statement.

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