The characteristic colour of the flame shown when a copper sail moistened with concentrated hydrochloric acid on a platinum wire is put on bunsen burner is
The characteristic colour of the flame shown when a copper sail moistened with concentrated hydrochloric acid on a platinum wire is put on bunsen burner is
Answer Details
When a copper salt moistened with concentrated hydrochloric acid is placed on a platinum wire and introduced into a flame, it produces a characteristic green color. This is due to the emission of photons by excited copper atoms as they return to their ground state. The photons emitted have a wavelength of about 510 nm, which corresponds to the green part of the visible spectrum. Therefore, the correct answer is green.