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JEE Main 2023 · 24 Jan · Shift 1 · Paper-1(B.E./B. Tech.)

JEE Main 2023 Chemistry question on Aldehydes Ketones and Acids

Compound (X) undergoes following sequence of reactions to give the Lactone (Y).



Compound (X) is
  1. A.
    HOH2C−C∣∣(CH3)2−CHO\text{HOH}_2\text{C} - \underset{|}{\overset{|}{\text{C}}}(\text{CH}_3)_2 - \text{CHO} (2,2-dimethyl-3-hydroxypropan-1-al): HOH2C−C(CH3)2−CHO\text{HOH}_2\text{C} - \text{C}(\text{CH}_3)_2 - \text{CHO}
  2. B.
    H2C−CH2−CHO\text{H}_2\text{C} - \text{CH}_2 - \text{CHO} with CH3\text{CH}_3 on the first carbon (branched)
  3. C.
    H2C−CH2−CH2−CH2−CHO\text{H}_2\text{C} - \text{CH}_2 - \text{CH}_2 - \text{CH}_2 - \text{CHO} with OH\text{OH} on the first carbon
  4. D.
    H−C(CH3)2−CHO\text{H} - \text{C}(\text{CH}_3)_2 - \text{CHO}
Show answer

Correct option: D

[JEE Main 2023 · 24 Jan · Shift 1 · Paper-1(B.E./B. Tech.)]

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