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Regarding the lime, consider the following statements:
1. Calcium hydroxide is also called as quicklime.
2. Calcium hydroxide reacts slowly with the carbon dioxide in air to form a thin layer of calcium carbonate on the walls after two to three days of whitewashing.
Which of the statements given above is/are correct?
  • a)
    1 Only
  • b)
    2 Only
  • c)
    Both 1 and 2
  • d)
    Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Regarding the lime, consider the following statements: 1. Calcium hyd...
  • Calcium oxide is called as quicklime. Calcium oxide reacts vigorously with water to produce slaked lime (calcium hydroxide) releasing a large amount of heat.
  • Calcium hydroxide reacts slowly with the carbon dioxide in air to form a thin layer of calcium carbonate on the walls. Calcium carbonate is formed after two to three days of white washing and gives a shiny finish to the walls.
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Community Answer
Regarding the lime, consider the following statements: 1. Calcium hyd...


Explanation:

Statement 1: Calcium hydroxide is also called as quicklime.
- This statement is incorrect. Calcium hydroxide is not the same as quicklime. Quicklime is actually calcium oxide (CaO), which is produced by heating calcium carbonate (lime) at high temperatures.

Statement 2: Calcium hydroxide reacts slowly with the carbon dioxide in air to form a thin layer of calcium carbonate on the walls after two to three days of whitewashing.
- This statement is correct. When calcium hydroxide (also known as slaked lime) is exposed to the carbon dioxide in the air, it reacts to form calcium carbonate. This process, known as carbonation, results in the formation of a thin layer of calcium carbonate on the walls after a few days of whitewashing.

Therefore, the correct answer is option B - 2 Only.
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Regarding the lime, consider the following statements: 1. Calcium hydroxide is also called as quicklime.2. Calcium hydroxide reacts slowly with the carbon dioxide in air to form a thin layer of calcium carbonate on the walls after two to three days of whitewashing.Which of the statements given above is/are correct?a) 1 Onlyb) 2 Onlyc) Both 1 and 2d) Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer?
Question Description
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