Neco 2019 Chemistry Question 3

Practice practical question 3 from the 2019 Neco Chemistry examination. This question covers Chemical Bonding .

Neco 2019 Chemistry Practical

Topic: Chemical Bonding

Question 3 NECO • 2019 • CHEMISTRY • practical

A white crystalline solid sample was examined in the chemistry laboratory. The following observations were recorded: - The solid is soluble in distilled water, producing a clear solution. - The solution conducts electricity with a measured conductivity of 1.2 × 10⁻² S·cm⁻¹. - The solid has a melting point of 801 °C. - When a few drops of the solution are treated with silver nitrate solution, a white precipitate forms immediately. Based on the above experimental data, answer the questions that follow.

( a )

Identify the type of chemical bonding present in the solid sample.

( b )

Provide two independent pieces of experimental evidence from the observations that support your identification in part (a).

( c )

Suggest one further practical test that could be performed to confirm the ionic nature of the compound and briefly describe the expected observation.

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This is Neco 2019 Chemistry Question 3. It is one of the practical questions from the 2019 Neco Chemistry examination.

The question covers Chemical Bonding .

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