Question

Conversion of starch in to glucose in the laboratory is only possible when it is boiled with
a) Hydrochloric acid
b) amylase solution
c)both can be possible
d)none​

Answer 1

Answer:

b) amylase solution

Explanation:

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Answer 2

Conversion of starch into glucose in the laboratory is done by boiling with hydrochloric acid and using amylase solution. Therefore, option (c) is correct.

Explanation:

• Hydrolysis is the process where water molecule is added.
• Starch can be converted to glucose by hydrolysis process in presence of hydrogen ion released from hydrochloric acid.
• The conversion reaction of starch into glucose is shown below ${{({{C}_{6}}{{H}_{10}}{{O}_{5}})}_{n}}+n{{H}_{2}}O\xrightarrow{{{H}^{+}}}n{{C}_{6}}{{H}_{12}}{{O}_{6}}$

• Starch can be converted to glucose also by using amylase solution.
• Amylase enzyme breaks down starch into glucose.
• In laboratory test can be performed using amylase solution. Starch gives blue colour with iodine. When amylase solution is added to starch the blue colour disappears after sometimes indicating the conversion of starch into glucose.