Question

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)


NCERT Class VIII
Science - Exemplar Problems

Chapter 2. Nutrition in Animals

Answer 1

( B ) On testing (i) and (iii) with iodine we will get blue black color.

Answer 2

Answer:

(b) i and iii

Explanation:

they both are food items that turn blue black color when iodine is dropped on it as they both are foods rich in starch

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