Question

5. Which of the following cannot be
represented by resonance
structures?
*
O Dimethyl ether
O Nitrate anion
O Carboxylate anion
O Toluene​

Answer 1

Carboxylate anion.

it is very easy

Answer 2

Dimethyl ether cannot be represented by resonance structure.

• Resonance structures occur to a molecule having double bonds.

• The pi bond resonates or moves or in other words, the electrons in the pi bond move along the molecule.

• This is will result in exhibiting partial double bond characters to the molecule.

• In the case of dimethyl ether, lacks a double bond, therefore, the molecule cannot form a resonance structure.