This hands-on experiment provided an excellent opportunity for students to apply their theoretical knowledge in a practical setting, honing their analytical and observational skills.

The practical began with flame tests, a classic method for identifying cations based on the characteristic colours they produce when heated in a flame. Each cation emits a specific colour, which students compared against a known database of flame test colours. This initial step allowed them to make preliminary identifications of the unknown substances.

Following the flame tests, students conducted further analyses to confirm their findings and identify additional components. They performed tests for carbonates, observing reactions with acids to detect the release of carbon dioxide gas. For halides, they used silver nitrate, noting the formation of distinctive precipitates. Finally, sulphate tests involved adding barium chloride to detect the presence of white barium sulphate precipitates.

Throughout the practical, our budding chemists demonstrated meticulous attention to detail and a solid understanding of chemical principles. This exercise not only reinforced their learning but also prepared them for future scientific endeavours. By the end of the session, students had successfully identified the unknown substances, showcasing their proficiency in qualitative analysis.

This Core Practical is a vital part of the chemistry curriculum, equipping students with essential laboratory skills and deepening their appreciation for the intricacies of chemical science.