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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Various reagents are added to water supplies to kill pathogens and make the water safe to drink.

Among the substances listed below, which does not serve that function?

  1. (a) Cl2
  2. (b) O3
  3. (c) Ca(ClO)2
  4. (d) Al2(SO4),

Interpretation Introduction

Interpretation:

From the given substances the substance which does not used to kill the pathogens in water has to be identified.

Concept introduction:

In the purification steps of water, various reagents are added to water supplies to kill pathogens and make the water safe to drink. Cl2,O3 … are the reagents used to kill the pathogens in water because they can generate free radicals which is effective to destroy various pathogens in water.

Explanation

Reason for the correct answer:

Al2(SO4)3 could not break the chemical bonds in the molecules of pathogens.

And it does not produce any active components like free radicals as other substances (Cl2,O3 ...) produces to kill the pathogens by breaking the chemical bonds in the pathogen’s molecule

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