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Match carbonyl reactions with their reagents or names

This type of question, asked 3 times: 2021 Paper 19, 1 Feb 2024, 22 Jan 2026 S1. All 3 questions below, oldest first.

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  1. Question 1

    2021 Paper 19

    37
    Match List-I with List-II: List-I (Chemical Reaction) List-II (Reagent used) (a) CH3COOCH2CH3→CH3CH2OHCH_{3}COOCH_{2}CH_{3}\rightarrow CH_{3}CH_{2}OH (i) CH3MgBr/H3O+CH_{3}MgBr/H_{3}O^{+} (1 equivalent) (b) CH3COOCH3→CH3CHOCH_{3}COOCH_{3}\rightarrow CH_{3}CHO (ii) H2SO4/H2OH_{2}SO_{4}/H_{2}O (c) CH3C≡N→CH3CHOCH_{3}C \equiv N \rightarrow CH_{3}CHO (iii) DIBAL-H/ H2OH_{2}O (d) CH3C≡N→CH3COCH3CH_{3}C \equiv N \rightarrow CH_{3}COCH_{3} (iv) SnCl2,HCl/H2OSnCl_{2},HCl/H_{2}O Choose the most appropriate match:

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  2. Question 2

    1 Feb 2024

    48
    Match List - I with List - II.
    List - I (Reactions)List - II (Reagents)
    (A)CH3(CH2)5COOC2H5→CH3(CH2)5CHOCH_{3}(CH_{2})_{5}COOC_{2}H_{5} \rightarrow CH_{3}(CH_{2})_{5}CHO(I)CH3MgBr, H2OCH_{3}MgBr,\ H_{2}O
    (B)C6H5COC6H5→C6H5CH2C6H5C_{6}H_{5}COC_{6}H_{5} \rightarrow C_{6}H_{5}CH_{2}C_{6}H_{5}(II)Zn(Hg)Zn(Hg) and conc. HClHCl
    (C)C6H5CHO→C6H5CH(OH)CH3C_{6}H_{5}CHO \rightarrow C_{6}H_{5}CH(OH)CH_{3}(III)NaBH4, H+NaBH_{4},\ H^{+}
    (D)CH3COCH2COOC2H5→CH3CH(OH)CH2COOC2H5CH_{3}COCH_{2}COOC_{2}H_{5} \rightarrow CH_{3}CH(OH)CH_{2}COOC_{2}H_{5}(IV)DIBAL-H, H2OH_{2}O
    Choose the correct answer from options given below:

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  3. Question 3

    22 Jan 2026 S1

    38
    Match the LIST-I with LIST-II
    List-I ReagentsList-II Name of Reaction involving carbonyl compound
    (A)NH2−NH2, KOH{NH}_{2} - {NH}_{2},\ KOH(I)Tollen's Test
    (B)Ag(NH3)2OHAg\left( {NH}_{3} \right)_{2}OH(II)Clemmensen Reduction
    (C)Aq. CuSO4{CuSO}_{4}, sodium potassium tartrate, KOH(III)Wolff-Kishner Reduction
    (D)Zn−Hg, HClZn - Hg,\ HCl(IV)Fehling's Test
    Choose the correct answer from the options given below

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