Aldehydes and Ketones 1

What is the name of this carbonyl compound?

• pentan-2-one
• hexan-5-one
• pentan-3-one
• hexan-2-one

What observations would you expect to see in a positive Fehlings test for an aldehyde?

• blue solution to brick-red solution
• blue solid to brick-red solution
• blue solution to brick-red solid
• blue solid to brick-red solid

What is the chemical name for Brady's reagent?

• 2,4-dinitrophenyhydrazone
• 2,4-diphenylhydrazine
• 2,4-dinitrophenyhydrazine
• 2,4-dinitrophenolhydrazine

When performing recrystallisation to purify crystals, on what basis is the solvent selected?

• the crystals have a high solubility in hot solvent but a low solubility in cold solvent
• the crystals have a high solubility in cold solvent but a low solubility in 
• the crystals must be highly soluble in both hot and cold solvent
• it doesn't matter which solvent you use

Potassium dichromate is an oxidising agent which can be used to completely oxidise an aldehyde. What is the correct formula of potassium dichromate

• KCrO₇
• K₂CrO₇
• K₂Cr₂O₇
• KCr₂O₇

What is the correct formula of the reducing agent used to reduce aldehydes and ketones?

• LiAlH₄
• LiAlH₂
• Li₂AlH₄
• LiAlH

Which of these compounds does not react with Brady's reagent?

• propanoic acid
• propanal
• propanol
• propanone

What is this compound called?

• aminoethanoic acid
• aminoethanone
• aminoethanal
• aminoethanoate

When reacted with a strong reducing agent, aldehydes turn into

• carboxylic acids
• ketones
• primary alcohols
• secondary alcohols

The mechanism that you need to learn for aldehydes and ketones is called 

• nucleophilic substitution
• nucleophilic addition
• electrophilic substitution
• free radical addition