Aldehydes & Ketones (test 6)

which aldehyde is a gas at room temp

• Acetaldehyde

• Propanal

• Formaldehyde

• Butanal

which reagent is used in Gattermann-koch reaction

• alkaline KMnO₄

• acidic KMnO₄

• CO + HCl

• neutral FeCl₃

which aldehyde has lower boiling point

• Propionaldehyde

• Acetaldehyde

• Formaldehyde

• Butanal

Aldehydes and Ketones undergo

• Electrophilic additin reactions

• Nucleophilic addition reactions

• Free radical addition reactions

• none of these

which carbonyl compound is more reactive

• Acetone

• Methanal

• Ethanal

• Butanone