Statement 1: Aldehyde and ketone undergo nucleophilic addition reaction with carbon nucleophile and undergo nucleophilic addition-elimination reaction with nitrogen Nucleophile.Statement 2: Addition of nucleophile on aldehyde and ketone form tetrahedral intermediate, in case of tetrahedral intermediate of nitrogen nucleophile nonbonding electrons are present on nitrogen which cause water molecule to eliminate while in case of carbon and hydrogen nucleophile nonbonding  electron are not present.