A slice of bread gives a positive iodine test however if the slice is

1.	A slice of bread gives a positive iodine test however if the slice is throughly chewed the test gives negative explain with reason
Answer» ong>ANSWER: It comes positive at first because it contains starch, after chewing it BECOMES negative because the saliva contains enzymes called salivary amylase which breaks down starch into simple sugars , LIKE maltose and DEXTRIN. When you chew the bread saliva digests the starch present in it hence it gives negative test. Explanation: Mark me as brainlist answer

A slice of bread gives a positive iodine test however if the slice is throughly chewed the test gives negative explain with reason

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It comes positive at first because it contains starch, after chewing it BECOMES negative because the saliva contains enzymes called salivary amylase which breaks down starch into simple sugars , LIKE maltose and DEXTRIN. When you chew the bread saliva digests the starch present in it hence it gives negative test.

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A slice of bread gives a positive iodine test however if the slice is throughly chewed the test gives negative explain with reason ​

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A slice of bread gives a positive iodine test however if the slice is throughly chewed the test gives negative explain with reason