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The main forms of Carbohydrates present in our food are-

  • Sugar
  • Starch

To test for the presence of starch.

TEST FOR STARCH.jpg

  • Take a small quantity of Food items or Raw Ingredients like rice or potato .
  • Put 2 to 3 drops of dilute iodine solution on it.
  • Observe any changes on the food items.
  • If the item changes its color to black or blue.
  • Black and blue color indicates that it contains starch .

TEST FOR IODINE ON POTATO.jpg

 

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Transcript

TEST FOR STARCH Food sample mixture Iodine Solution Iodine Test for starch TEST FOR IODINE ON POTATO Orangey-Brown color of iodine turns to Blue-Black who reacts with starch Potato Peeled Potato Add Iodine

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo