Q$3.$ Following are the condensed structures of the compounds convert them into complete structures. Include all the non$-$bonding electrons.

a$)C{H}_{3}COC{H}_{2}CHCH\frac{C}{O}OH$

b$)NCC{H}_{2}COC{H}_2$CHO

c$)C{H}_{2}CHCH(OH)C{H}_{2}C{O}_{2}H$

Q$4.$ The following table shows how hybridization is associated with different molecular shapes.

$4.$

$\backslash$table$[[\backslash$table$[[$No of$],[$surrounding$],[$atoms $+],[$lone pairs$]],$Hybridization,$\backslash$table$[[$Orbital$],[$Geometry$]],$Bond angle,$\backslash$table$[[$Molecular$],[$geometry $($does$],[$not include$],[$lone pairs$)]]],[\backslash$table$[[4+0$ lone$],[$pair$]],S{p}^3,\backslash$table$[[$Tetrahedral$],[($Td$)]],109\mathrm{.}8,Td$