Neco Model Questions Vol1 2017 Chemistry Question 3
Practice practical question 3 from the 2017 Neco Model Questions Vol1 Chemistry examination. This question covers Chemical Bonding .
A student carried out a series of simple qualitative tests on three solid samples labelled A, B and C. The observations are recorded in the table below. | Sample | Solubility in water | Electrical conductivity (solid) | Electrical conductivity (solution/molten) | Approx. melting point | |--------|---------------------|--------------------------------|-------------------------------------------|-----------------------| | A | Dissolves readily | Does not conduct | Conducts well when dissolved | High (≈ 800 °C) | | B | Does not dissolve | Does not conduct | Does not conduct | Low (≈ 150 °C) | | C | Does not dissolve | Conducts well | Conducts well when molten | High (≈ 1200 °C) | Based on these observations answer the following questions:
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This is Neco Model Questions Vol1 2017 Chemistry Question 3. It is one of the practical questions from the 2017 Neco Model Questions Vol1 Chemistry examination.
The question covers Chemical Bonding .
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