Welcome to the Quiz!
This quiz contains 12 questions from a mix of 1 subtopics.
Which of the following is a cation?
OH-
Ca2+
H2O
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In preparation for the flame test, which two of the following are used to clean the platinum wire loop?
Bunsen burner flame
Soapy water
Hydrochloric acid
Antiseptic wipes
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When performing the flame test, in which part of the flame should you place the wire loop with the metal sample?
Orange part of the flame
Blue part of the flame
Yellow part of the flame
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In the flame test for cations, which metal burns with a lilac flame?
Potassium ions
Lithium ions
Calcium ions
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In the flame test for cations, what colour flame do calcium ions give?
Green
Orange-red
Yellow
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In the flame test for cations, which metal burns with a crimson flame?
Copper ions
Lithium ions
Sodium ions
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In the flame test for cations, what colour flame do sodium ions give?
Orange-red
Yellow
Green
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In the flame test for cations, what colour flame do copper ions give?
Green
Yellow
Orange-red
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In the sodium hydroxide test for cations, which ion gives a brown precipitate?
Fe2+
Ca2+
Fe3+
Mg2+
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In the sodium hydroxide test for cations, which two ions give a white precipitate?
Fe2+
Fe3+
Mg2+
Ca2+
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In the sodium hydroxide test for cations, which colour precipitate do Cu2+ ions give?
Green
Brown
Orange
Blue
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In the sodium hydroxide test for cations, which ion gives a white precipitate at first, but then redissolves to give a colourless solution when excess sodium hydroxide is added?
Al3+
Ca2+
Cu2+
Fe2+
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