Question

W is an underground stem of its plant. It is commonly used as a vegetable and also for making chips.When a solution X is added to the cut surface of W,then a colour Y is produced,which shows that W contains a nutrient Z in it.What is W,X,Y and Z.
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Answer 1

Answer:

W-potato

X-Iodine

Y-blue black

Z-starch

Answer 2

Answer: W - potato

X - iodide

Y- blue - black

Z- starch

I hope I help you all

Explanation: