Question

"Alkali metal and alkaline earth metal chlorides can be detected by flame test."
Answer whether the above statement is true or false.
If true enter 1, else enter 0.

Answer 1

Alkali and alkaline earth metals can be detected by the respective flame tests and can be determined by flame photometry or atomic absorption spectroscopy. These elements when irradiated with light, the light energy absorbed may be sufficient to make an atom lose electron.

In flame, the electrons are excited to higher energy levels and when they drop back to the ground state, energy is emitted in the form of visible light.