Question

What is incorrect order of stability ?

(I)

(II)

(III)

(IV)

(V)

(VI)

• A. I, II, V, VI
• B. I, III, V, VI
• C. I, V, VI
• D. I, VI

Answer 1

Answer: (D)

I, VI

Answer 2

(I) Stability according to cycloalkene before 11 membered ring. Cis > trans

(II) Trans > cis

(III) Hydrogen bonding

(IV) Gauche effect

(V) Hydrogen bonding in undissociated form

(VI) Maximum possible group should be at equatorial position.