Neco Model Questions Vol1 2019 Chemistry Question 3
Practice practical question 3 from the 2019 Neco Model Questions Vol1 Chemistry examination. This question covers Chemical Bonding, Physical Properties, Conductivity .
A student carried out a series of simple tests on three solid samples labelled X, Y and Z to investigate the nature of the bonding present in each sample. The observations recorded are shown in the table below. | Sample | Solubility in water | Conductivity of aqueous solution | Conductivity of solid (electrode test) | Approx. melting point | |--------|----------------------|-----------------------------------|----------------------------------------|-----------------------| | X | Soluble | Good (bright lamp) | No (no current) | 800 °C | | Y | Insoluble | None (lamp off) | No (no current) | 150 °C | | Z | Insoluble | None (lamp off) | Yes (current observed) | 1085 °C | Using the data above, answer the following questions.
Question Parts
Detailed Solution & Marking Scheme
Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.
Reveal AnswerAbout This Question
This is Neco Model Questions Vol1 2019 Chemistry Question 3. It is one of the practical questions from the 2019 Neco Model Questions Vol1 Chemistry examination.
The question covers Chemical Bonding, Physical Properties, Conductivity .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.