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Biomolecules question

2023 · 1 Feb · Shift 1 · Q7
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Biomolecules question

2023 · 1 Feb · Shift 1 · Q7

JEE MainChemistryBiomoleculesMCQ+4 / −1

Match List I with List II

List I List II
Test Functional group / Class of Compound
A. Molisch's Test I. Peptide
B. Biuret Test II. Carbohydrate
C. Carbylamine Test III. Primary amine
D. Schiff's Test IV. Aldehyde

Choose the correct answer from the options given below :

  1. A
    (A) - III, (B) - IV, (C) - II, (D) - I
  2. B
    (A) - II, (B) - I, (C) - III, (D) - IV
  3. C
    (A) - III, (B) - IV, (C) - I, (D) - II
  4. D
    (A) - I, (B) - II, (C) - III, (D) - IV
View written solutionFree

Correct answer: B

  1. Identify each test and what it detects

    A. Molisch's Test
    Molisch's test is a general test for carbohydrates.
    Hence, A→IIA \to IIA→II

    B. Biuret Test
    Biuret test is used to detect peptide bonds in proteins/peptides.
    Hence, B→IB \to IB→I

    C. Carbylamine Test
    Carbylamine test is given by primary amines.
    Hence, C→IIIC \to IIIC→III

    D. Schiff's Test
    Schiff's reagent gives a positive test with aldehydes.
    Hence, D→IVD \to IVD→IV

  2. Write the full matching

    Therefore, the correct matching is: A−II,  B−I,  C−III,  D−IVA-II,\; B-I,\; C-III,\; D-IVA−II,B−I,C−III,D−IV

  3. Compare with options

    This corresponds to Option B.

  4. Comparison with stored answer

    Stored correct answer = B
    Derived answer = B
    So, they agree.

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