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Under what soil condition do you think a...

Under what soil condition do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk (calcium carbonate) ?

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When the soil receives acid rain or is acidic otherwise (pH less than 7), the farmer would treat the soil of his fields with one of the above `(CaO, Ca(OH)_2, CaCO_3]` to neutralise the effect of acid.
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Under what soil condition do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk ( calclum carbonate)?

Under what soil conditions do you think a farmer would treat the soil of his fields with quicklime (calcium oxide), or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?

(a) The recovery of silver nitrate solution involves displacement by copper metal. Write the equation of the reaction that takes place. Give the states of all the substances. (b) Under what soil conditions do you think a farmer would treat the soil in his fields with quicklime ? Why? (c) Name one sodium compound which is used for softening hard water and another which is used in fire extinguishers.

(a) What are the various ways in which a chemical equation can be made more informative ? Give examples to illustrate your answer. (b) Write balanced chemical equation from the following information : An aqueous calcium hydroxide solution (lime water) reacts with carbon dioxide gas to produce a solid calcium carbonate precipitate and water.

Calcium hydroxide is called slaked lime. It is prepared on a commercial scale by adding water to