The sample of soil from a particular place was tested for its pH value. It came out to be 5. Which one of the following should be added to the soil to make it suitable for the plant growth?
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Explanation:
Generally the optimum pH range for plant growth is from 5.5 to 7. Calcium chloride is a neutral salt, so its addition will not have any effect. Calcium Hydroxide is a strong base and Calcium oxide is a basic oxide. So their suitable addition will take the pH from 5 to the optimum range of 5.5-7.
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Answer:
calcium oxide should be added.
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