Observe the follwoing laboratory tests for α−D−(+) glucose and mention +ve or -ve from the code given below.
A
++++
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B
−++−
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C
+−+−
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D
++−−
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Solution
The correct option is B−++− α−D−(+) glucose does not test positive with 2,4-dinitrophenylhydrazine, NaHSO3 and it test positive with Tollens' reagent and NH2OH/H+.