Answer:
i: answer is in attachment.
ii: 24 valance electron in overall structure
iii: carbon having positive charge while oxygen having negative
iv: a bond angle of approximately 104.5 degrees.
v: CH3 having sp3 hybridization and both CH having sp2 hybridization
vi: yes. resonance occur between CH=CH and oxygen.
Step-by-step explanation:
iii: oxygen is electronegative so attraction of electrons occur at oxygen results in negative charge.
iv: a bond angle is about 104.5 degrees because the oxygen has 2 lone pairs and 2 bond pairs of electrons so lone pairs repulsion occur more than bonding pairs that's why the angle is less than that of an atom with tetrahedral or pyramidal geometry.