Question

Examine the following resonating structure of formic acid and arrange them in decreasing order of stability
H-C
012-H-C=0
H-
4H-C
OHZH-COH
M
(​

Answer 1

Answer:

The decreasing order of stability is

(i)<(ii) <(iii)<(iv)

Explanation:

Rules

(I) more is the no. of covalent bonds

More is the stability

(ii) -ve charge must be on electronegative atom

and

+be charge must be on electropositive atom.