Assertion - Glucose pentaacetate shows 2,4 DNP test. Reason - Commercially, glucose is obtained by hydrolysis of starch …
Assertion - Glucose pentaacetate shows 2,4 DNP test.
Reason - Commercially, glucose is obtained by hydrolysis of starch at 393 K by heating with dilute sulphuric acid.
Memory Based Question 28/Jan/25 Morning shift
Assertion is incorrect, Reason is correct
No, glucose does not respond to the 2,4-dinitrophenyl hydrazine (2,4-DNP) test, as it does not contain any free aldehydic group in its cyclic form.
Commercially, Glucose is prepared by hydrolysis of starch by boiling it with dil .sulphuric acid.
\(({\mathrm{C}}_{6}{\mathrm{H}}_{10}{\mathrm{O}}_{5})+{\mathrm{nH}}_{2}\mathrm{O}\overset{\mathrm{dil}{\mathrm{H}}_{2}{\mathrm{SO}}_{4}/373\mathrm{K}}{\to }{\mathrm{nC}}_{6}{\mathrm{H}}_{12}{\mathrm{O}}_{6}\)
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