$($Resonance Structures, Isomerism, Bond$-$line structures and Bond Polarity$)$

Q$.1$ Determine whether the following pairs of structures are actually different compounds or simply resonance forms for same compounds. Justify your choice. $($Problem $1-41$ from the pg# $51$ from textbook$).$

a$)-$L$)$

Q$.2$ For each of these ions, draw all the significant resonance structures and predict which resonance structures is likely to be the major contributor. Justify your choice$($Problem $1-44$ from the pg# $52$ from textbook$).$

a$)-$e$)$