Consider the following statements about cis- and trans-decalins(A) cis-isomer is more stable than trans-isomer(B) trans-isomer is more stable than cis-isomer(C) trans-isomer undergoes ring-flip(D) cis-isomer undergoes ring-flipThe correct statements among the above are
(a)B and D
(b)A and C
(c)A and D
(d)B and C
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
trans-Decalin is more stable: no extra gauche interactions and both ring bonds equatorial. It is also conformationally locked. cis-Decalin can ring-flip. B and D (a).