There are two-test tubes provided to you. One has sugar solution and the other has starch dissolved in water. To differentiate one from the other, the correct way to test is
(a) Smell on heating
(b) Observe colour change by adding dil HCl
(c) Observe colour change by adding iodine solution
(d) Solubility in water
CBSE Class IX Science VSA (1 Mark)
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(c) Colour change by adding iodine solution
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