Essential Chemistry for IGCSE - Making And Identifying Salts (Section 5 - No. 9)
When performing a flame test, what is the main reason for cleaning the wire loop before use?
To prevent the wire from melting.
To remove any previously present compounds.
To make the flame hotter.
To make the results clearer.
Explanation
Cleaning the wire loop ensures that the test only shows the color from the tested sample.
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