Chemistry

11th -

12thgrade

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Testing for Cations

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16 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Why can't you use a flame test to distinguish between silver and lead?

    silver is colourless

    lead is toxic

    they are the same colour

    both 1 & 2 are correct

  • 2. Multiple Choice
    30 seconds
    1 pt

    A white precipitate forming when ammonia is added to an unknown light blue precipitate indicates the presence of....

    copper

    magnesium

    barium

    silver

  • 3. Multiple Choice
    30 seconds
    1 pt

    A cobalt blue precipitate forming when ammonia is added to an unknown light blue precipitate indicates the presence of....

    silver

    lead

    magnesium

    copper

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