21. Colour imparted to the Bunsen flame by strontium salt is A.Bluish green B.Apple-green C.Brick red D.Crimson red
Answer: Option D Solution: A flame test is performed by introducing a sample into the blue flame of a bunsen burner and noting any change in the colour of the flame. The tests can be used to detect the presence of some metallic elements in salts. With strontium salt, the colour of Bunsen flame ranges from crimson to red.
