Draw resonance contributors for each of the following species and rank them in order of decreasing contribution to the hybrid. Then draw the resonance hybrid.

a) A is more stable than B because in B there is positive charge on oxygen atom and there are separated charges.

b) A is more stable than B because there are separated charges.

c) A is more stable than B because in A there is pnegative charge on oxygen atom.

d) A is more stable than B because there are separated charges.

e) A is more stable than B because positive charge on A is on less electronegative atom.

f) Here A and B are equally stable.

A is more stable than B because in B there is positive charge on oxygen atom and there are separated charges.

A is more stable than B because in A there is pnegative charge on oxygen atom.

A is more stable than B because there are separated charges.

e)

Here A and B are equally stable.