Chlorine and Chlorate uses

Equation for Chlorine with water

Cl₂ + H₂O  ⇌ HCl +HClO

What type of reaction is the chlorine reaction with water

disproportional

why is chlorate (ClO) used for tap water

Toxic enough to kill bacteria but kept at harmless reaction

99% of water supply is wasted e.g flushing so saves lives

Equation of reaction of water in the Prescence of bright sunlight

2Cl₂ + 2H₂O  → 4HCl +O₂

Why do swimming pools exposed to sunlight need to be topped up frequently

No HClO is formed in presence of sunlight so cannot kill bacteria

What other household item contains ClO and why

Bleach -CL oxidizing agent so can remove stains as well as killing bacteria

Production of Bleach equation and necessary requirements

Cl₂ + NaOH → NaClO + NaCl +H₂O

cold and dilute NaOH