Find the total number of C-C bonds of equal length in the dianion of squaric acid,

Question

Find the total number of C-C bonds of equal length in the dianion of squaric acid, <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/c-0oeirlpecdzxs4z0.jpg" /> (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

The dianion is resonance stabilized, because the negative charges are equally distributed between each oxygen atom, the dianion of squaric acid is completely symmetrical. All C-C bonds have the same bond length. The following are the resonating structures, <img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-0oeirlpecdzxjrpq.jpg" />

Q. Find the total number of $C - C$ bonds of equal length in the dianion of squaric acid,

The dianion is resonance stabilized, because the negative charges are equally distributed between each oxygen atom, the dianion of squaric acid is completely symmetrical. All $C - C$ bonds have the same bond length. The following are the resonating structures,

Q. Find the total number of C−C bonds of equal length in the dianion of squaric acid,

The dianion is resonance stabilized, because the negative charges are equally distributed between each oxygen atom, the dianion of squaric acid is completely symmetrical. All C−C bonds have the same bond length. The following are the resonating structures,

Q. Find the total number of $C - C$ bonds of equal length in the dianion of squaric acid,

The dianion is resonance stabilized, because the negative charges are equally distributed between each oxygen atom, the dianion of squaric acid is completely symmetrical. All $C - C$ bonds have the same bond length. The following are the resonating structures,