The correct of stability of the cyclohexane conformations(I) Chair (II) Half-Chair (III)Twist- Boat (IV) Boat is?
The correct order for decreasing stability of the following free radicals is
The stability of carbanions in the following
i) RC≡⊖C
ii)
iii) R2C=⊖CH
iv) R3C−⊖CH2
is in the order of