Physics, asked by pawansaklani4747, 7 months ago

short note on flame test​

Answers

Answered by King412
11

AnsWer :-

A flame test is an analytical procedure used in chemistry to detect the presence of certain elements, primarily metal ions, based on each element's characteristic emission spectrum.

Answered by Naimeesya
2

A flame test is a qualitative analysis used by the chemist to identify the metal and metalloid ion in the sample. Not all metal ions emit colour when heated in the gas burner. A flame test is the simplest way of identifying the presence of group 1 metal ions in the compound. For other metals, there are plenty of reliable techniques, but a flame test will give a better hint on where to look.

There are some safety techniques to perform the flame test in the laboratory.

  • Use chemical splash/impact goggles
  • Perform the flame test under the direction or supervision of chemistry teachers.

When the sample is heated, metal ions gain energy and shift from a lower energy level to a higher energy level. Ions are not stable at a high energy level, and they return to the ground with energy-release. The energy is released in the form of light and it varies from one metal ion to another. Thus, each metal ion gives a characteristic change of colour when it is heated.

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