Class 12 Exam > Class 12 Questions > Bleaching powder liberate chlorine bya)reacti...
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Bleaching powder liberate chlorine by
- a)reacting with CO2
- b)heating in the presence of CoCI2
- c)reacting with excess diluted acid
- d)reacting with H2S
Correct answer is option 'A,C'. Can you explain this answer?
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Introduction:
Bleaching powder, also known as calcium hypochlorite (Ca(ClO)2), is a chemical compound widely used for its bleaching and disinfecting properties. It is commonly used in the textile industry, water treatment plants, and as a household bleach. When bleaching powder comes into contact with certain substances, it liberates chlorine gas, which is responsible for its bleaching and disinfecting actions.
Explanation:
The correct options for bleaching powder liberating chlorine are A (reacting with CO2) and C (reacting with excess diluted acid). Let's discuss these options in detail:
Option A: Reacting with CO2
When bleaching powder reacts with carbon dioxide (CO2), it liberates chlorine gas (Cl2). The chemical reaction can be represented as follows:
Ca(ClO)2 + CO2 → CaCO3 + Cl2
Here, calcium hypochlorite reacts with carbon dioxide to form calcium carbonate and release chlorine gas.
Option C: Reacting with excess diluted acid
When bleaching powder reacts with excess diluted acid, it also liberates chlorine gas. The reaction involves the decomposition of calcium hypochlorite in the presence of acid to form calcium chloride, water, and chlorine gas.
Ca(ClO)2 + 2HCl → CaCl2 + H2O + Cl2
In this reaction, calcium hypochlorite reacts with hydrochloric acid to produce calcium chloride, water, and chlorine gas.
Other options:
Option B: Heating in the presence of CoCl2
Heating bleaching powder in the presence of cobalt chloride (CoCl2) does not liberate chlorine gas. This combination does not result in any significant chemical reaction that releases chlorine.
Option D: Reacting with H2S
Bleaching powder does not react with hydrogen sulfide (H2S) to liberate chlorine gas. The reaction between bleaching powder and hydrogen sulfide does not occur, and thus, no chlorine gas is produced.
Conclusion:
Bleaching powder liberates chlorine gas by reacting with carbon dioxide (CO2) and excess diluted acid. These reactions result in the release of chlorine gas, which is responsible for the bleaching and disinfecting properties of bleaching powder.
Bleaching powder, also known as calcium hypochlorite (Ca(ClO)2), is a chemical compound widely used for its bleaching and disinfecting properties. It is commonly used in the textile industry, water treatment plants, and as a household bleach. When bleaching powder comes into contact with certain substances, it liberates chlorine gas, which is responsible for its bleaching and disinfecting actions.
Explanation:
The correct options for bleaching powder liberating chlorine are A (reacting with CO2) and C (reacting with excess diluted acid). Let's discuss these options in detail:
Option A: Reacting with CO2
When bleaching powder reacts with carbon dioxide (CO2), it liberates chlorine gas (Cl2). The chemical reaction can be represented as follows:
Ca(ClO)2 + CO2 → CaCO3 + Cl2
Here, calcium hypochlorite reacts with carbon dioxide to form calcium carbonate and release chlorine gas.
Option C: Reacting with excess diluted acid
When bleaching powder reacts with excess diluted acid, it also liberates chlorine gas. The reaction involves the decomposition of calcium hypochlorite in the presence of acid to form calcium chloride, water, and chlorine gas.
Ca(ClO)2 + 2HCl → CaCl2 + H2O + Cl2
In this reaction, calcium hypochlorite reacts with hydrochloric acid to produce calcium chloride, water, and chlorine gas.
Other options:
Option B: Heating in the presence of CoCl2
Heating bleaching powder in the presence of cobalt chloride (CoCl2) does not liberate chlorine gas. This combination does not result in any significant chemical reaction that releases chlorine.
Option D: Reacting with H2S
Bleaching powder does not react with hydrogen sulfide (H2S) to liberate chlorine gas. The reaction between bleaching powder and hydrogen sulfide does not occur, and thus, no chlorine gas is produced.
Conclusion:
Bleaching powder liberates chlorine gas by reacting with carbon dioxide (CO2) and excess diluted acid. These reactions result in the release of chlorine gas, which is responsible for the bleaching and disinfecting properties of bleaching powder.
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Bleaching powder liberate chlorine bya)reacting with CO2b)heating in the presence of CoCI2c)reacting with excess diluted acidd)reacting with H2SCorrect answer is option 'A,C'. Can you explain this answer?
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Bleaching powder liberate chlorine bya)reacting with CO2b)heating in the presence of CoCI2c)reacting with excess diluted acidd)reacting with H2SCorrect answer is option 'A,C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Bleaching powder liberate chlorine bya)reacting with CO2b)heating in the presence of CoCI2c)reacting with excess diluted acidd)reacting with H2SCorrect answer is option 'A,C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Bleaching powder liberate chlorine bya)reacting with CO2b)heating in the presence of CoCI2c)reacting with excess diluted acidd)reacting with H2SCorrect answer is option 'A,C'. Can you explain this answer?.
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