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Identification Test for Salts

What is the r...

Question

What is the role of blue glass in the flame test?

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Solution

Blue glass helps in cation recognition.
It is because of the absorption tendency of blue glass.
In some circumstances, a blue glass can absorb all of the flame's light, but in others, it can only absorb a portion of it.
As a result, when looking through blue glass, no color or a different color is seen.

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