Single Choice

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

AHeating with dilute $${H}_{2}{SO}_{4}$$
Correct Answer
BFermentation by diastase
CFermentation by zymase
DHeating with dilute $$NaOH$$

Solution

Answer: $$(A)$$ Heating with diute $${H}_{2}S{O}_{4}$$
Commercially glucose is obtained by hydrolysis of starch by heating it with dilute $${H}_{2}S{O}_{4}$$ at 393 K under pressure.
$$\underset{Starch}{{\left({C}_{6}{H}_{10}{O}_{5} \right)}_{n}} + n{H}_{2}O \xrightarrow[393 K; \; 2-3 atm]{{H}^{+}} \underset{Glucose}{n{C}_{6}{H}_{12}}{O}_{6}$$

SIMILAR QUESTIONS

Biomolecules

Synthesis of each molecule of glucose in photosynthesis involves:

Biomolecules

Complete hydrolysis of starch gives:

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Credit balance shown by a bank column in cash book is ______.

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The sequence from $$(A)$$ to $$(D+E)$$ is called:

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What happens when $$S-$$ glucose is treated with the following reagents? $$HNO_{3}$$

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starch undergose hydrolysis is presence of mineral acids to

Biomolecules

Select the carbohydrate which gives only glucose on hydrolysis:

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