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Which or how many given compounds give the iodoform (haloform) test

This type of question, asked 6 times: 31 Jan 2023, 6 Apr 2023, 9 Apr 2024, 3 Apr 2025, 4 Apr 2025, 23 Jan 2026 S2. All 7 questions below, oldest first.

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  1. Question 1

    31 Jan 2023

    148
    The number of molecules which gives haloform test among the following molecules is

  2. Question 2

    6 Apr 2023

    148
    Among the following, the number of compounds which will give positive iodoform reaction is ____ (a) 1-Phenylbutan-2-one (b) 2-Methylbutan-2-ol (c) 3-Methylbutan-2-ol (d) 1-Phenylethanol (e) 3,3-dimethylbutan-2-one (f) 1-Phenylpropan-2-ol

  3. Question 3

    9 Apr 2024

    131
    Which of the following compound can give positive iodoform test when treated with aqueous KOHKOH solution followed by potassium hypoiodite?

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  4. Question 4

    3 Apr 2025

    36
    Number of molecules from below which cannot give iodoform reaction is :Ethanol, Isopropyl alcohol, Bromoacetone, 2-Butanol, 2-Butanone, Butanal, 2-Pentanone, 3-Pentanone, Pentanal and 3-Pentanol

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  5. Question 5

    4 Apr 2025

    103
    Which among the following compounds give yellow solid when reacted with NaOI/NaOHNaOI/NaOH ? (A) CH3−CH(OH)−C2H5{CH}_{3} - CH(OH) - {C}_{2}{H}_{5} (B) CH3−CH2−CH2−OH{CH}_{3} - {CH}_{2} - {CH}_{2} - OH (C) CH3−CO−C2H5{CH}_{3} - CO - {C}_{2}{H}_{5} (D) CH3COOH{CH}_{3}COOH (E) CH3−CH2−CHO{CH}_{3} - {CH}_{2} - CHO Choose the correct answer from the options given below:

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  6. Question 6

    23 Jan 2026 S2

    37
    Which of the following statements are TRUE about Haloform reaction? (A) Sodium hypochlorite reacts with KI to give KOI. (B) KOI is a reducing agent. (C) α,β\alpha,\beta-unsaturated methylketone will give iodoform reaction. (D) Isopropyl alcohol will not give iodoform test. (E) Methanoic acid will give positive iodoform test. Choose the correct answer from the options given below:

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  7. Question 7

    23 Jan 2026 S2

    33
    Iodoform test can differentiate between (A) Methanol and Ethanol (B) CH3COOH{CH}_{3}COOH and CH3CH2COOH{CH}_{3}{CH}_{2}COOH (C) Cyclohexene and cyclohexanone (D) Diethyl ether and Pentan-3-one (E) Anisole and acetone Choose the correct answer from the options given below:

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