Q.

Statement I : In the iodometric titration, starch is used as an indicator
Statement II : Starch is a polysaccharide.

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a

Statement I and II are correct

b

Statement I is correct and II is incorrect

c

Statement I is incorrect and statement II is correct

d

Statement I and II are incorrect

answer is A.

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Detailed Solution

I) In iodometric titration starch added to I2 gives blue colour.
When I2 is reduced to I- near the end point blue colour disappears
Statement I is correct
II) Starch is (C6H10O5)n a polysacchoride formed by condensation of α - glucose units
Statement II is correct

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Statement I : In the iodometric titration, starch is used as an indicator Statement II : Starch is a polysaccharide.