A sample of soil is mixed with water and allowed to settle. The clear supernant solution turns the pH paper yellowish orange. What would you add to change thw color of this pH paper to greenish blue?
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yellowish shows the acidic nature for reducing the acidic nature we will have to put the reagent of anti acid as you have written that there. is a soil means silica that's why we will have to mix it calcium hydroxide to make it green
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