The question asks about the common application of bleaching powder.
Bleaching powder, chemically known as calcium hypochlorite ($Ca(OCl)_2$), has strong oxidizing and disinfecting properties. Let's analyze the options:
Based on its chemical properties, the most common and significant use of bleaching powder among the given options is for disinfecting water.
Correct Answer: Option 3: To disinfect water
Which of the following is a greenhouse gas?
I. Methane
II. Nitrous oxide
Among the following, the conducting form of carbon is
Which of the following is NOT a Fossil Fuel?
Which one of the following is used in soda-acid fire extinguishers?
The separation of two immiscible liquids can be done based on the difference in their_______.