Igcse Model Questions Vol1 2019 Chemistry Question 3

Practice essay / theory question 3 from the 2019 Igcse Model Questions Vol1 Chemistry examination. This question covers Chemical Bonding .

Igcse Model Questions Vol1 2019 Chemistry Essay / Theory
Topic: Chemical Bonding
Question 3 IGCSE_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • essay

The diagram shows the Lewis structures of two compounds, labelled X and Y.

Question Parts

( a )
Identify the type of bonding present in each compound.
( b )
For compound Y, calculate the formal charge on each atom and state whether the octet rule is satisfied for all atoms.
( c )
Explain how the lattice energy of compound X influences its melting point compared with compound Y.
( d )
For compound Y:
( ) State the molecular shape using VSEPR theory.
( ) Give the approximate bond angle between the N–H bonds.

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About This Question

This is Igcse Model Questions Vol1 2019 Chemistry Question 3. It is one of the essay questions from the 2019 Igcse Model Questions Vol1 Chemistry examination.

The question covers Chemical Bonding .

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