Checking the oxalic acid in guava at diffrent stages
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Yes,that is chemistry investigatory project of class 12, you can take help from the teacher or a good practical book.
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Study of the presence of oxalate ions in guava fruit at different stages of ripening. Procedure : (1) Weigh 50g of fresh guava and crush it to a fine pulp using pestle and mortar. (2) Transfer the crushed pulp to a beaker and add about 50ml dilute H2SO4 to it.
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