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Subject :Biology    Class : Class 7

Given below from (i) to (iv) are some food items.
(i) Boiled and mashed potato
(ii) Glucose solution
(iii) A slice of bread
(iv) Mustard oil
Which of the above will give blue-black colour when tested with iodine?

A (i) and (ii)
B (i) and (iii)
C (ii) and (iii)
D (iii) and (iv).

isn't glucose a carbohydrate?

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