Iodine turns a tested leaf blue black. This shows the leaf has stored:

Question

Accepted Answer

D. Starch

1. Iodine gives a blue black colour only with starch.
2. Starch in a leaf shows food was made there.
3. So the leaf has stored starch.
_Source: syllabus Science Class VII, Chapter 1, Nutrition in Plants._

Answer

Protein

Answer

Vitamin

Answer

Mineral

Iodine turns a tested leaf blue black. This shows the leaf has stored:

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