Question

14. Observe the given diagram :
Crushed potato
Crushed potato
Saliva
Test tube A
Test tube B
Few drops of dilute iodine solution is added to both the test tubes. Blue
colour appears in the test tube B. What change occurs in test tube A ?
Why?
PPT-034​

Answer 1

Answer:

are u at 7th i had same question

Explanation:

due to presence pf starch in it

When u will put iodine to eatable which contain starch it will turn blue

Iodine is test for starch