Igcse Model Questions Vol1 2025 Chemistry Question 3

Practice practical question 3 from the 2025 Igcse Model Questions Vol1 Chemistry examination. This question covers Chemical Bonding .

Igcse Model Questions Vol1 2025 Chemistry Practical

Topic: Chemical Bonding

Question 3 IGCSE_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • practical

You are given an unknown solid sample labelled X. The following experimental observations were recorded during a series of qualitative tests. Observations: - Solubility in water: dissolves completely, clear solution. - Solubility in ethanol: does not dissolve. - Conductivity of the aqueous solution (conductivity tester): high conductivity, 1.2 mS cm⁻¹. - Flame test: no characteristic colour observed. Using the data above, answer the questions that follow.

Question Parts

( a )

State the most probable type of chemical bonding present in sample X.

( b )

For each observation, explain how it supports the conclusion in part (a).

( c )

Suggest one additional experimental technique that could be used to confirm the type of bonding and outline the essential steps of the technique.

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About This Question

This is Igcse Model Questions Vol1 2025 Chemistry Question 3. It is one of the practical questions from the 2025 Igcse Model Questions Vol1 Chemistry examination.

The question covers Chemical Bonding .

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