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How many moles of an alcohol are needed to react with 1 mole of an aldehyde to form a hemiacetal?

What is the acetal formed when propanone reacts with two molecules of methanol?

Formalin is

How many lone pairs of electrons does the oxygen in a carbonyl group have?

What is the name of this compound?             O              CH3 – C – CH – CH3                       |                     CH3

How many hydrogen atoms are bonded to the carbonyl group in a ketone?

How do sugars form cyclic hemiacetals?

The flavoring agent found in vanilla is

The increased boiling point of ketones compared to alkanes and ethers of similar molar mass is due to

What are the bond angles in a typical carbonyl group?