A compound gives an orange-red colour to non-luminous flame. This compound is likely to contain
Answer Details
When a compound is heated in a flame, the heat excites the electrons in the compound, causing them to jump to higher energy levels. When these electrons return to their original energy levels, they release energy in the form of light, which gives a characteristic color to the flame.
The orange-red color is typically associated with the presence of calcium (Ca2+) ions in a compound. Therefore, the compound is most likely to contain Ca2+ ions.