Consider the following bonds:
(i) C–N single bond in ethylamine (CH3CH2NH2),
(ii) C=N double bond in an imine (CH3CH=NH),
(iii) C≡N triple bond in acetonitrile (CH3C≡N), and
(iv) N–H bond in ammonia (NH3).
Identify which bond is expected to have (a) the highest bond energy and (b) the greatest bond length. Provide a brief justification based on both bond order and hybridization.