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Chemistry · PYQ NEET UG 2024

हिन्दी

Identify the correct reagents that would bring about the following transformation: \( \text{Cyclohexene} \to \text{Cyclohexane-1-carbaldehyde} \) (via hydroboration-oxidation route)

  1. A
    (i) \( \text{BH}_3 \), (ii) \( \text{H}_2\text{O}_2/\text{OH}^- \), (iii) alk. \( \text{KMnO}_4 \), (iv) \( \text{H}_3\text{O}^+ \)
  2. B
    (i) \( \text{H}_2\text{O}/\text{H}^+ \), (ii) \( \text{PCC} \)
  3. C
    (i) \( \text{H}_2\text{O}/\text{H}^+ \), (ii) \( \text{CrO}_3 \)
  4. D
    (i) \( \text{BH}_3 \), (ii) \( \text{H}_2\text{O}_2/\text{OH}^- \), (iii) \( \text{PCC} \)
View Answer & Solution

Correct answer · Option D

(i) \( \text{BH}_3 \), (ii) \( \text{H}_2\text{O}_2/\text{OH}^- \), (iii) \( \text{PCC} \)

Explanation

Hydroboration-oxidation of alkene gives alcohol anti-Markovnikov's addition, which on oxidation with PCC gives aldehyde.
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