Co-ordinate or Dative Bond

${\mathrm{O}}_3$ molecule is a resonance hybrid of the two structures $\mathrm{I}$ and $\mathrm{II}.$

The two oxygen-oxygen bond lengths in ozone molecule are

Ozone is:

Give reasons for the following :

The two oxygen-oxygen bond lengths in ozone molecule are identical.

Account for the following -

The two $\mathrm{O}-\mathrm{O}$ bond lengths in the ozone molecule are equal.

Identify the incorrect statement from the following:

Which of the statements given below is incorrect?

Cotyledons are also called-

Which of the following is incorrect?