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Chemistry
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Chemistry
Alkali and alkaline earth metals impart colours when heated over burner. It is due to______________?
A
Smaller electronegativity of alkali metals
Option A
B
Smaller ionic radius of these metals
Option B
De-excitation of electrons from higher energy levels to low energy level
Correct answer
D
Excitation of electrons from low energy levels to higher energy levels
Option D
Correct answer: C
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