Aldehydes and Ketones

When reacted with a strong reducing agent, aldehydes turn into

• carboxylic acids
• ketones
• primary alcohols
• secondary alcohols

Select carbonyl compounds from the following formulae:

• C₄H₁₀O
• C₄H₈O
• C₄H₈O₂
• C₄H₈

Classify the compound based on the functional group present.

• aldehyde
• ketone
• carboxylic acid
• ester

Classify the compound based on the functional group present.

• aldehyde
• ketone
• carboxylic acid
• ester

Which of the following groups can be classified as carbonyls?

• aldehydes
• ketones
• esters
• aldehydes and ketones

Which of the following alcohols can be oxidized to a ketone?

• 
• 
• 
• 

Which of the following reagents will oxidise propan-1-ol to propanal (tick all that apply)?

• Acidified potassium dichromate (VI)

• 2,4-DNPH (Brady's reagent)

• Fehling's solution

• PCl₅ (phosphorus pentachloride)

On heating compound X with acidified KMnO₄, compound Y is obtained. Compound Y does not react with Fehling’s solution. X and Y are most likely to be,

Compound X Compound Y

• CH₃COCH₃ CH₃COOH

• CH₃CH(OH)CH₃ CH₃COCH₃

• CH₃CH₂CH₂OH CH₃COCH₃

• CH₃CH₂CH₂OH CH₃CH₂CHO

When reacted with an oxidising agent, secondary alcohols turn into

• carboxylic acids

• ketones

• primary alcohols

• aldehydes

When reacted with a strong reducing agent, aldehydes turn into

• carboxylic acids

• ketones

• primary alcohols

• secondary alcohols