Match the following List - I (P) CHO-H(OH)-H(OH)-H(OH)-H(OH)-CH2OH (Q) CHO-H(OH)-HO(H)-HO(H)-H(OH)-CH2OH (R) CHO-HO-OH-HO-HO-CH2OH (S) CH2OH-O-HO-OH-OH-CH2OH List - II (1) Functional isomer of D-gluco

Question

Match the following

List - I
(P) CHO-H(OH)-H(OH)-H(OH)-H(OH)-CH2OH
(Q) CHO-H(OH)-HO(H)-HO(H)-H(OH)-CH2OH
(R) CHO-HO-OH-HO-HO-CH2OH
(S) CH2OH-O-HO-OH-OH-CH2OH

List - II
(1) Functional isomer of D-glucose
(2) Epimer of D-glucose
(3) Reducing sugar
(4) Forms same osazone on treatment Ph-NH-NH2 as D-glucose forms
(5) Enantiomer of D-glucose

Prashant Kotian · Accepted Answer

Correct answer: A. All Monosaccharides are reducing sugars. (I) is Mannose and is a C-2 epimer of glucose. The formation of osazone involves C-1 and C-2. Glucose, Mannose and Fructose have identical configuration at C-3, C-4 and C-5. Hence, they form the same osazone.

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