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Alkaline Soil , alkaline soil Soil with a pH greater than 7.0. Degrees of soil alkalinity are recognized. The USDA lists soils with a pH 7.4–7.8 as mildly alkaline;… Ph , pH is a measure of the acidity or alkalinity of a solution. The variability of pH can have a dramatic effect on geochemical processes (e.g., weatheri… Saline-sodic Soil , saline-sodic soil Soil that contains more than 15 per cent exchangeable sodium, a saturation extract with a conductivity of more than 0.4 siemens per… Phenolphthalein , phenolphthalein A dye used as an acid-base indicator. It is colourless below pH 8 and red above pH 9.6. It is used in titrations involving weak acids… alkaline , alkaline •catchline • dragline • tramline •landline • strapline • chatline •carline •breadline, deadline, headline, redline •neckline • hemline • hel… Litmus Paper , Litmus paper is the most recognized member of chemical indicators. Like most pH paper, litmus changes color when exposed to an acidic or basic soluti…
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