Question

how can we test the presence of starch in a food item​

Answer 1

Explanation:

Take a source of carbohydrate

test of starch

• take a small quantity of food item for to test the starch.
• put 2-3 drop of iodine solution on it.
• observers the colour of the food item.
• if the food change its colour un blue black colour it indicates the presence of starch and if not then not presence of starch.

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Answer 2

${\boxed{\tt{Requirement\:!!}}}$

• A Piece Of Pitato.
• Iodine Solution.
• Dropper and a petri Dish.

${\boxed{\tt{Procedure\:!!}}}$

• Place the piece of potato on a petri dish. Add a drop of iodine solution on the piece of potato with a dropper.

${\boxed{\tt{Observation\:!!}}}$

• The Portion of the potato piece where iodine solution is applied turns bluish - black in colour.

${\boxed{\tt{Conclusion\:!!}}}$

• Starch is prensent in Potato.