General Science - Physics (Basics)
Which of the following substances is used as a disinfectant and bleaching agent in water treatment?
Which of the following substances is used as a disinfectant and bleaching agent in water treatment?
medium Q6 of 15
Step-by-Step Solution
Step 1: Understand disinfectants in water treatment
Disinfectants kill germs and bleaching agents remove color and stains.Step 2: Analyze the options
Bleaching powder contains calcium oxychloride and is widely used for disinfecting and bleaching; sodium bicarbonate is baking soda; calcium carbonate is chalk; sodium chloride is common salt.Final Answer:
Bleaching powder → Option AQuick Check:
Water disinfectant = Bleaching powder ✅
Quick Trick: Bleaching powder is chlorine-based disinfectant.
Common Mistakes:
- Confusing baking soda or salt as disinfectants.
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