Why is the product only methyl 3-nitrobenzoate? Hint: why does nitration occur in the meta position only?

a) Put these three common types of carbonyl compound in order of decreasing reactivity         ester          amide          acid chloride           b) For the least reactive, show the interconversion to its other resonance form:         How does this electron delocalisation make it stable?         c) For the most reactive, draw the mechanism of its undergoing hydrolysis (reaction with H2O): Why makes this type of carbonyl so reactive to nucleophiles?

Give me answer complete and with explanation how to right please.

What is the first step in the mechanism for electrophilic aromatic substitutions and What is the driving force for losing a proton as the last step in electrophilic aromatic substitutions? Addition of the electrophile to the aromatic ring; Regeneration of the catalyst O Addition of the electrophile to the aromatic ring; Loss of the electrophile from the aromatic ring O Protonation of the aromatic ring, To make the ring more reactive O Generation of the electrophile; To restore an aromatic system O Deprotonation of the aromatic ring; To make room for the electrophile