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CBSE Class 12-science Answered

Despite having an aldehydic group:(a) Glucose does not give 2, 4-DNP test. What does this indicate?(b) Draw the howorth structure of -D-(+)-Glucopyranose.(c) What is the significance of D and (+) here?
Asked by Topperlearning User | 22 Jun, 2016, 08:00: AM
Expert Answer

(a) This indicates that the aldehydic group in glucose is not free.
(b)

(c) 'D' gives the configuration, i.e. the group at carbon 5 is on the right hand side and (+) indicates that the isomer is Dextrorotatory.

Answered by | 22 Jun, 2016, 10:00: AM
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