An active ingredient in bleaching powder for bleaching action is-

Question

Question

This question was previously asked in

Rajasthan 3rd Grade (Maths & Science) Official Paper (Held On: 25 Feb 2023 Shift 2)

Answer 1

CONCEPT:

Bleaching Powder and Its Active Ingredient

Bleaching powder is chemically known as calcium hypochlorite, with the formula Ca(OCl)₂.
It is commonly used as a disinfectant and bleaching agent in various industries and households.
The active ingredient in bleaching powder responsible for its bleaching action is calcium hypochlorite (Ca(OCl)₂).
When bleaching powder is dissolved in water, it releases hypochlorous acid (HOCl), which is a strong oxidizing agent. This oxidizing property is responsible for its bleaching action.

EXPLANATION

CaCl₂ - This is calcium chloride, which does not have any bleaching properties.
CaOCl - This is incorrect as it is not the correct formula of the active ingredient.
Ca(OCl)₂ - This is calcium hypochlorite, the active ingredient in bleaching powder responsible for its bleaching action. It is the correct answer.
CaO₂Cl - This is an incorrect representation of the chemical formula.

Therefore, Ca(OCl)₂ is the active ingredient in bleaching powder responsible for its bleaching action.