The molecule shown is methyl formate, C2H4O2, the simplest example of an organic ester. The three carbon–oxygen bonds in the molecule are numbered. Which of the following statements is or are true?

i. Bond 1 is the strongest carbon–oxygen bond.

ii. Bond 1 is longer than bond 2.

iii. The length of bond 3 is closer in value to that of bond 2 than to that of bond 1.