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Read the passage and answer the following questions.
Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.
Name the product when water is added to quicklime.
- a)Calcium oxide
- b)Calcium hydroxide
- c)Calcium dioxide
- d)Calcium carbonate
Correct answer is option 'B'. Can you explain this answer?
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Read the passage and answer the following questions.Suhana wanted her...
Suhana noticed the water boiling because reaction between quick lime (CaO) and water is exothermic. The large amount of heat evolved made the water boiling.
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Calcium oxide react vigorously with water to produce slaked lime(calcium hydroxide) releasing a large amount of heat.
CaO(s) + H2O → Ca(OH)2 + heat
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Read the passage and answer the following questions.Suhana wanted her...
When water is added to quicklime, the product formed is calcium hydroxide (option B).
Quicklime, also known as calcium oxide (CaO), is a white, caustic, alkaline crystalline solid. It is obtained by heating limestone (calcium carbonate) at high temperatures in a process called calcination. When water is added to quicklime, a chemical reaction occurs, resulting in the formation of calcium hydroxide.
Here's a detailed explanation of the process:
1. Chemical Equation: The reaction between quicklime and water can be represented by the following chemical equation:
CaO + H2O → Ca(OH)2
2. Dissolution: When quicklime is added to water, it undergoes a process called slaking or hydration. The quicklime reacts vigorously with water, releasing a large amount of heat. This exothermic reaction causes the water to boil, as observed by Suhana.
3. Formation of Calcium Hydroxide: The reaction between quicklime and water produces calcium hydroxide, which is a white, crystalline solid. Calcium hydroxide is also known as slaked lime or hydrated lime.
4. Physical Properties: Calcium hydroxide is a slightly soluble compound in water. It forms a milky suspension when mixed with water, known as lime water. Lime water has a pH of around 12-13, indicating its alkaline nature.
5. Use in Whitewashing: Calcium hydroxide is commonly used in whitewashing or painting walls. It is mixed with water to form a paste, which is then applied to the walls. As the paste dries, the calcium hydroxide reacts with carbon dioxide from the air to form calcium carbonate, which gives the whitewashed surface a durable, white appearance.
In conclusion, when water is added to quicklime, the product formed is calcium hydroxide (Ca(OH)2). This chemical reaction is exothermic and causes the water to boil. Calcium hydroxide is commonly used in whitewashing walls due to its alkaline and durable nature.
Quicklime, also known as calcium oxide (CaO), is a white, caustic, alkaline crystalline solid. It is obtained by heating limestone (calcium carbonate) at high temperatures in a process called calcination. When water is added to quicklime, a chemical reaction occurs, resulting in the formation of calcium hydroxide.
Here's a detailed explanation of the process:
1. Chemical Equation: The reaction between quicklime and water can be represented by the following chemical equation:
CaO + H2O → Ca(OH)2
2. Dissolution: When quicklime is added to water, it undergoes a process called slaking or hydration. The quicklime reacts vigorously with water, releasing a large amount of heat. This exothermic reaction causes the water to boil, as observed by Suhana.
3. Formation of Calcium Hydroxide: The reaction between quicklime and water produces calcium hydroxide, which is a white, crystalline solid. Calcium hydroxide is also known as slaked lime or hydrated lime.
4. Physical Properties: Calcium hydroxide is a slightly soluble compound in water. It forms a milky suspension when mixed with water, known as lime water. Lime water has a pH of around 12-13, indicating its alkaline nature.
5. Use in Whitewashing: Calcium hydroxide is commonly used in whitewashing or painting walls. It is mixed with water to form a paste, which is then applied to the walls. As the paste dries, the calcium hydroxide reacts with carbon dioxide from the air to form calcium carbonate, which gives the whitewashed surface a durable, white appearance.
In conclusion, when water is added to quicklime, the product formed is calcium hydroxide (Ca(OH)2). This chemical reaction is exothermic and causes the water to boil. Calcium hydroxide is commonly used in whitewashing walls due to its alkaline and durable nature.
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Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer?
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Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer?.
Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
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Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Read the passage and answer the following questions.Suhana wanted her house to be white washed. She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.Name the product when water is added to quicklime.a)Calcium oxideb)Calcium hydroxidec)Calcium dioxided)Calcium carbonateCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 10 tests.
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