Question

Which of the following sequence of reagents converts 3-hexene to propane?

• A. \( KMnO_4 | H^+; NaOH, CaO \)
• B. \( (i) O_3, (ii) Zn, H_2O; NaBH_4 \)
• C. \( (i) O_3, (ii) Zn, H_2O; Zn-Hg, HCl \)
• D. \( KMnO_4 | H^+; LiAlH_4, H_2O \)

Hint:

Ozonolysis followed by Zn-Hg reduction is a standard method for converting alkenes to alkanes.

Answer 1

The Correct Option is C

Step 1: Mechanism of Reaction Ozonolysis breaks the double bond into carbonyl compounds. Zn/H\(_2\)O reduction converts them into aldehydes. Zn-Hg/HCl (Clemmensen reduction) converts aldehydes to alkanes.