Standard titration - estimation of vitamin c in lemon juice, Biology

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Explain Standard titration - Estimation of Vitamin C in Lemon Juice?

Pipette 5 ml of standard ascorbic acid solution into a 100 ml conical flask. Fill the burette with the dye solution. Titrate the solution against the dye solution till a light pink color appears which persists for 30 seconds. Standardize the dye solution.

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