Question

Explain why magnesium,aluminium and iron metals cannot be identified by flame test?

Answer 1

Because they are good conductor of heat.

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Answer 2

Explanation:

• Magnesium, Aluminium and Iron metals cannot be identified by flame test because these are reacts with flame and forms new products.

1. In flame test the chemical substance is directly subjected to a hot flame and give their distractive colour it will be helps to identify the unknown elements which are present in the chemical.
2. When heated to elevated temperatures, certain components give off a distinctive color.

Flame test and characteristic colours of some elements as attached in the below: