Question

Nowadays which non metal is generally mixed in water to purify water?

• A. Fluorine
• B. Nitrogen
• C. Chlorine
• D. Sulphur

Answer 1

The correct option is C Chlorine

Chlorine is highly used for disinfecting water. Chlorine kills pathogens such as bacteria and viruses by
breaking the chemical bonds in their molecules. When enzymes come in contact with chlorine, one or more of the
hydrogen atoms in the molecule are replaced by chlorine. This causes the entire molecule to change shape or fall apart.

When enzymes do not function properly, a cell or bacterium will die.