Answer
1) The lewis structure is shown in the picture.
2) The dipole moment in C-H bond is towards carbon, in N-H bond is towards N and in C-N bond is towards N. The molecular dipole is towards N.
3) The compound has a large dipole moment.
Work Step by Step
1) The lewis structure is drawn the way it is written. The hydrogens are drawn attached to the carbon which is double bonded to N and N is bonded to hydrogen.
2) The dipole moment in C-H bond is towards carbon because carbon is more electronegative than hydrogen, in N-H bond is towards N because nitrogen is more electronegative than hydrogen and in C-N bond is towards N because nitrogen is more electronegative than carbon. The lone pairs also contribute towards the molecular dipole moment. Thus, the molecular dipole is towards N.
3) The compound has a large dipole moment.
