Elements of Groups 16, 17 and 18 — Chemistry STD 12 Science — Question
Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryElements of Groups 16, 17 and 182 Marks
Question
Give two uses of chlorine.
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Answer
Chlorine is used for :
for sterilization of drinking water.
bleaching wood pulp required for the manufacture of paper and rayon, cotton and textiles are also bleached using chlorine.
in the manufacture of organic compounds like $CHCl _3, CCl _4$ DDT, dyes and drugs.
in the extraction of metals like gold and platinum.
in the manufacture of refrigerant like Freon (i.e., $CCl _2 F_2$ ).
in the manufacture of several poisonous gases like mustard gas $\left( Cl ^{-} C _2 H _4- S - C _2 H _4- Cl \right)$, phosgene $\left( COCl _2\right)$ used in warfare.
in the manufacture of tear gas $\left( CCl _3 NO _2\right)$.
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