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Helen [10]
4 years ago
15

Why is it necessary to wait 10 minutes before adding iki solution to the test tubes?

Chemistry
1 answer:
Alenkasestr [34]4 years ago
3 0
The investigation was carried out to explore the effect of amylase on the starch that is present in a substance. The IKI solution reacts with starch to give a dark blue color.

We wait 10 minutes before adding the IKI solution to give the amylase sufficient time to act on the starch present, so that a false negative for the presence of starch is not obtained.
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