Bleaching powder, chemically known as calcium hypochlorite, has the formula Ca(OCl)₂. Its component elements are:
- Calcium (Ca) - A metal that is a key part of the compound.
- Oxygen (O) - Present in the hypochlorite groups.
- Chlorine (Cl) - Present in the hypochlorite groups as well.
So, the main elements in bleaching powder are calcium, oxygen, and chlorine.