18. What is most likely to be the final product when cyclopentene is subjected to the following reaction scquence: (I) H+/H2O；(II) PCC；(IIl) piperidine； (IV) NaBH3CN?(A)(B)(C)(D)

2. How many of the following statements is/are correct? (I) Gauche form is the most stable conformer of butane. (II) In cyclopropane, the maximum electron density between two carbon atoms corresponds to the internuclear axis. (III) According to Bacyer strain theory, cyclopentane has greater angle strain than cyclohexane. (A)0(B)1 (C)2 (D)3

18. What is most likely to be the final product when cyclopentene is subjected to the following reaction scquence: (I) H⁺/H₂O；(II) PCC；(IIl) piperidine； (IV) NaBH₃CN?
(A)
(B)
(C)
(D)

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