Preparation and Properties of Aldehydes and Ketones
Chemistry ⇒ Carbon and Organic Chemistry
Preparation and Properties of Aldehydes and Ketones starts at 12 and continues till grade 12.
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A student adds 2,4-DNP to an unknown compound and observes a yellow precipitate. What does this indicate about the functional group present?
Aldehydes are generally more reactive than ketones towards nucleophilic addition reactions. State one reason for this difference.
Calculate the number of moles of acetone (C3H6O) in 58 grams. (Molar mass = 58 g/mol)
Describe the difference in the chemical reactivity of aldehydes and ketones towards oxidation.
Describe the mechanism of nucleophilic addition of HCN to an aldehyde.
Describe the process of ozonolysis of alkenes for the preparation of aldehydes and ketones.
Describe the role of acid or base in the aldol condensation of aldehydes and ketones.
Explain why formaldehyde is more reactive than acetone towards nucleophilic addition.
Explain why ketones are less reactive than aldehydes towards nucleophilic addition reactions.
Explain why ketones do not give a positive Tollens' test.
Name the product formed when acetaldehyde is treated with Fehling's solution.
State the product formed when acetone reacts with hydrazine (NH2NH2).
What is the product when acetaldehyde undergoes aldol condensation?
Which method is commonly used for the industrial preparation of formaldehyde?
Which of the following is a distinguishing property of aldehydes compared to ketones?
Which test can be used to distinguish between an aldehyde and a ketone?
Write the equation for the oxidation of ethanol to ethanal using PCC.
Write the IUPAC name for CH3COCH3.
A compound with molecular formula C4H8O does not react with Tollens' reagent but gives a positive Iodoform test. Identify the compound and explain your reasoning.
Arrange the following carbonyl compounds in increasing order of boiling point: acetone, formaldehyde, butanone.
