1. Tardigrade
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  3. Chemistry
  4. Starch is a mixture of two components, a water soluble component amylose (15-20 %) and a water insoluble component amylopectin (80-85 %). The aqueous solution of amylose gives a blue colour with iodine solution due to the formation of

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Q. Starch is a mixture of two components, a water soluble component amylose $(15-20\%)$ and a water insoluble component amylopectin $(80-85 \%)$. The aqueous solution of amylose gives a blue colour with iodine solution due to the formation of

AIIMSAIIMS 2013

Solution:

Inclusion complex is a host guest addition compound. The space available within the Crystal lattice of the host molecule ie amylose is in the form of tunnels and the size of the tunnels is such that it can easily accomodate guest molecules ie iodine molecules to form an addition compound called the inclusion complex
The blue colour however, disappears on heating and reappers on cooling