Waec Model Questions Vol1 2021 Chemistry Question 3

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

Waec Model Questions Vol1 2021 Chemistry Essay / Theory
Topic: Chemical Bonding
Question 3 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • essay

Sodium chloride (NaCl) is a typical ionic compound, while carbon dioxide (CO₂) is a covalent molecular compound. Using the concepts of chemical bonding, answer the following.

Question Parts

( a )
Describe the nature of ionic bonding and covalent bonding, highlighting the role of electron transfer and sharing.
( b )
Explain why NaCl has a high melting point and is soluble in water, whereas CO₂ has a low sublimation point and is poorly soluble in water.
( c )
Predict the type of electrical conductivity exhibited by molten NaCl and gaseous CO₂ and justify your answer.

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About This Question

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

The question covers Chemical Bonding .

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