Lime water isa)CaOb)Ca(OH)2c)CaCO3d)CaCI2Correct answer is option 'B'. Can you explain this answer?

Question

Answer

Limewater is the common name for a dilute aqueous solution of calcium hydroxide.
Calcium hydroxide, Ca(OH)₂, is sparsely soluble at room temperature in water (1.5 g/L at 25 °C). It is basic in nature with a pH of 12.4.

Answer

It's Ca (OH )2..also known as calcium hydroxide..

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Chemical formula of lime water is Ca(OH)2 or Calcium Hydroxide. So the correct Option is B.

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Lime water is also known as calcium hydroxide. therefore the correct answer is (b).

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Lime water is formed when CaO (Quick lime) reacts with H2O.
The reaction is--

CaO+H2O------Ca(OH)2.Here 2 is whole twice of (OH).

Friends I hope you understand it.
Thanks

Answer

££---> (B) Ca(OH)2....!!

Calcium hydroxide is the Chemical name of lime water.

Answer

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When quicklime react with water then form slaked lime and heat and slaked lime is also known as lime water there is combination reaction take place

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B calcium hydroxide

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Limewater is the common name for a dilute aqueous solution of calcium hydroxide. ... When excess calcium hydroxide is added (or when environmental conditions are altered, e.g. when its temperature is raised sufficiently), a milky solution results due to the homogeneous suspension of excess calcium hydroxide

Answer

Lime water is a solution of calcium hydroxide (Ca(OH)2) in water. Calcium hydroxide is also known as slaked lime or hydrated lime.

Explanation:

- Calcium oxide (CaO) is also known as quicklime, which is obtained by heating calcium carbonate (CaCO3) at high temperatures. It is highly reactive and can cause severe burns on contact with skin. It is not suitable for use as lime water.
- Calcium carbonate (CaCO3) is a common mineral found in rocks, shells, and coral reefs. It is not soluble in water and cannot form a solution. It is also not suitable for use as lime water.
- Calcium chloride (CaCl2) is a salt that is highly soluble in water. It is not suitable for use as lime water as it does not contain hydroxide ions (OH-) which are present in calcium hydroxide.

Uses of Lime Water:

- Lime water is used in chemistry experiments to test for the presence of carbon dioxide (CO2). When carbon dioxide is bubbled through lime water, it reacts with calcium hydroxide to form calcium carbonate, which is insoluble and causes the solution to turn cloudy. This is used as a test for the presence of carbon dioxide gas.
- Lime water is also used in agriculture to adjust the pH of soil. It can be added to acidic soil to raise the pH and make it more alkaline, which is suitable for certain crops.
- Lime water is also used in water treatment to remove impurities such as hardness ions (calcium and magnesium) and to adjust the pH of water to make it more suitable for drinking and other uses.

In conclusion, lime water is a solution of calcium hydroxide (Ca(OH)2) in water, which is used for various purposes in chemistry, agriculture, and water treatment.

Answer

Answer

Ca(OH)2

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Because it is also known as calcium hudroxide

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Ca(OH)2...(calcium Hydroxide )..

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It's also known as calcium hydroxide.. that's y option [b] is correct.

Answer

Calcium oxide

Answer

Calcium hydroxide (ca(oh)2)

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