MCQMediumJEE Main 2023 · 25 January, Shift 1Carbohydrates (Glucose, Fructose, Sucrose…)

Chemistry Question from JEE Main 2023 · 25 January, Shift 1

Match items of Row I with those of Row II: Row I:

Structure labelled P showing a six-membered glucopyranose ring with CH2OH group up and anomeric OH below the plane.Structure labelled Q showing a six-membered glucopyranose ring with CH2OH group up and anomeric OH above the plane.Structure labelled R showing a five-membered fructofuranose ring with CH2OH substituents and anomeric OH below the plane.Structure labelled S showing a five-membered fructofuranose ring with CH2OH substituents and anomeric OH above the plane.

Row II:

  • (i) α\alpha-D-(-) Fructofuranose
  • (ii) β\beta-D-(-) Fructofuranose
  • (iii) α\alpha-D-(+) Glucopyranose
  • (iv) β\beta-D-(+) Glucopyranose

The correct match is:

  • A

    P \to iv, Q \to iii, R \to i, S \to ii

  • B

    P \to i, Q \to ii, R \to iii, S \to iv

  • C

    P \to iii, Q \to iv, R \to ii, S \to i

  • D

    P \to iii, Q \to iv, R \to i, S \to ii

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