Which one of the following is extensively used for sterilizing water ?
A. Bleaching powder
B. Alum
C. Borax powder
D. Soda powder
Answer: Option A
Solution(By Examveda Team)
Bleaching powder is extensively used in sterilizing water. Calcium hypochlorite is a chemical compound with formula Ca(OCl)2. It is widely used for water treatment and as a bleaching agent (bleaching powder). This chemical is considered to be relatively stable and has greater available chlorine than sodium hypochlorite (liquid bleach). Calcium hypochlorite is a yellow white solid which has a strong smell of chlorine. It is not highly soluble in water, and is more preferably used in soft to medium-hard water. It has two forms: a dry form and a hydrated form. The hydrated form is safer to handle.Related Questions on Chemistry
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A. electrons and neutrons
B. electrons and protons
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D. All of the above
The number of moles of solute present in 1 kg of a solvent is called its
A. molality
B. molarity
C. normality
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