Milk of lime reacts with chlorine to produce:a)Bleaching powderb)Quick limec)Gypsumd)Slaked limeCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

Slaked lime reacts with chlorine gas to produce the bleaching agent calcium hypochlorite – a common form of 'swimming pool' chlorine. When heated with coke, a form of carbon, calcium oxide combines to form calcium carbide. When calcium carbide is mixed with water, a gas called acetylene is produced.
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Answer

Answer

Reaction between Milk of Lime and Chlorine

The reaction between milk of lime and chlorine gas is a common reaction in the field of industrial chemistry. The product obtained from this reaction is:

- Bleaching Powder (option A)

Bleaching powder is a white crystalline solid that is used as a disinfectant, bleaching agent, and oxidizing agent.

Chemical Equation:

The chemical equation for the reaction between milk of lime and chlorine is:

Ca(OH)2 + Cl2 → CaOCl2 + H2O

Explanation of the Reaction:

- Milk of Lime:

Milk of lime is a suspension of calcium hydroxide (Ca(OH)2) in water. It is used in various chemical processes as a base and a neutralizer.

- Chlorine:

Chlorine is a greenish-yellow gas that is used in the production of various chemicals, including bleach, PVC, and solvents. It is also used as a disinfectant in water treatment.

- Bleaching Powder:

Bleaching powder is a white powder that contains calcium hypochlorite (Ca(OCl)2) as the main active ingredient. It is used as a bleaching agent, disinfectant, and oxidizing agent.

- Reaction Mechanism:

When milk of lime is exposed to chlorine gas, a reaction takes place in which calcium hypochlorite (bleaching powder) is produced. The reaction mechanism is as follows:

1. Chlorine gas dissolves in water to form hydrochloric acid (HCl) and hypochlorous acid (HClO).

Cl2 + H2O → HCl + HClO

2. Calcium hydroxide reacts with hypochlorous acid to form calcium hypochlorite and water.

Ca(OH)2 + HClO → Ca(OCl)2 + H2O

The overall reaction can be represented as:

Ca(OH)2 + Cl2 → Ca(OCl)2 + H2O

Conclusion:

The reaction between milk of lime and chlorine gas produces bleaching powder, which is used in various applications like bleaching of textiles and paper, water treatment, and disinfection.

Answer

It forms bleaching powder.as ca(oh)2 +cl2 forms caocl2 and h20....it is often used for cleaning purpose

Answer

Milk of lime also a suspension of slaked lime
Ca(OH)2+cl2=Ca(clo)2

Answer

Bleaching powder

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