Igcse Model Questions Vol1 2021 Chemistry Question 3

Practice essay / theory question 3 from the 2021 Igcse Model Questions Vol1 Chemistry examination. This question covers Chemical Bonding .

Igcse Model Questions Vol1 2021 Chemistry Essay / Theory
Topic: Chemical Bonding
Question 3 IGCSE_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • essay

The diagram shows the Lewis structures of three compounds: ammonia (NH3), water (H2O) and carbon dioxide (CO2).

Question Parts

( a )
For each molecule, state the electron‑pair geometry, the molecular shape and the approximate bond angle(s).
( b )
State the type of hybridisation of the central atom in each molecule.
( c )
Discuss the polarity of each molecule, giving reasons based on shape and bond dipoles.
( d )
Compare the boiling points of the three substances and explain the observed trend in terms of intermolecular forces.

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About This Question

This is Igcse Model Questions Vol1 2021 Chemistry Question 3. It is one of the essay questions from the 2021 Igcse Model Questions Vol1 Chemistry examination.

The question covers Chemical Bonding .

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