Neco Model Questions Vol1 2017 Chemistry Question 2
Practice practical question 2 from the 2017 Neco Model Questions Vol1 Chemistry examination. This question covers Periodic Table, Transition Metals, Qualitative Analysis .
A student is given an unknown aqueous solution of a metal ion. The following observations were recorded during the investigation: - Flame test: a bright blue‑green flame. - Addition of dilute NaOH solution produces a pale blue precipitate which dissolves on addition of excess NaOH, giving a deep blue solution. - Addition of aqueous ammonia to the solution after the NaOH test produces a deep blue complex that persists on standing. Using the periodic table and the observations, answer the questions below.
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This is Neco Model Questions Vol1 2017 Chemistry Question 2. It is one of the practical questions from the 2017 Neco Model Questions Vol1 Chemistry examination.
The question covers Periodic Table, Transition Metals, Qualitative Analysis .
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