Uses & Reactions of Chlorine (AQA A-Level Chemistry): Quizzes

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Uses & Reactions of Chlorine
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What type of reaction occurs when Cl2\text{Cl}_2 reacts with water?

Disproportionation

What are the products when Cl2\text{Cl}_2 dissolves in water?

HClO and HCl

What is the oxidation state of Cl in chlorate(I) ion (ClO−\text{ClO}^-)?

+1

Why are chlorate(I) ions used in water treatment?

They kill bacteria effectively

Which disease does water chlorination help prevent?

Cholera

What is a disadvantage of using chlorine in water?

Toxic and carcinogenic

What products form when sunlight decomposes Cl2\text{Cl}_2 in water?

HCl and O2\text{O}_2

What forms when Cl2\text{Cl}_2 reacts with cold dilute NaOH?

NaCl, NaClO and H2O\text{H}_2\text{O}

What is observed when Cl2\text{Cl}_2 reacts with NaOH?

Green gas forms colourless solution

What is the active ingredient in household bleach?

Sodium chlorate(I) (NaClO)

Explore AQA A-Level Chemistry Revision Notes by Topics

Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

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Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

Explore AQA A-Level Chemistry Flashcards by Topics

Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

Explore AQA A-Level Chemistry Exam Questions by Topics

Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

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