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Question

Which of the following treatment will convert starch directly into glucose?

A
Heating with dilute H2SO4
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B
Fermentation by diastase
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C
Fermentation by zymase
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D
Heating with dilute NaOH
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Solution

The correct option is A Heating with dilute H2SO4
Answer: (A) Heating with diute H2SO4
Commercially glucose is obtained by hydrolysis of starch by heating it with dilute H2SO4 at 393 K under pressure.
(C6H10O5)nStarch+nH2OH+−−−−−−−−393K;23atmnC6H12GlucoseO6

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