Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
Why do aldehydes undergo oxidation more readily than ketones?
aldehydes have a strongly acidic hydrogen attached to the carbonyl carbon
aldehydes have a weakly acidic hydrogen attached to the carbonyl carbon
ketones have a strongly acidic hydrogen attached to the carbonyl carbon
ketones have a weakly acidic hydrogen attached to the carbonyl carbon
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Which of the following products is formed when an aldehyde is reduced using a reducing agent like sodium borohydride (NaBH4)?
tertiary alcohol
carboxylic acid
secondary alcohol
primary alcohol
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Which of the following products is formed when a ketone is reduced using a reducing agent like sodium borohydride (NaBH4)?
primary alcohol
carboxylic acid
secondary alcohol
tertiary alcohol
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In the reduction of carbonyl compounds to alcohols, what role does the reducing agent play?
it provides protons (H+) which act as electrophiles
it provides electrons which act as nucleophiles
it provides hydride ions (H-) which act as nucleophiles
it provides hydroxide ions (OH-) which act as nucleophiles
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What type of reaction occurs when aldehydes and ketones react with hydrogen cyanide (HCN)?
electrophilic substitution
electrophilic addition
nucleophilic addition
nucleophilic substitution
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What are the products formed when aldehydes and ketones react with hydrogen cyanide (HCN)?
carboxylic acids
alcohols
esters
hydroxynitriles
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Hydroxynitriles contain which of the following substituents?
hydroxy (-OH) and alkyl (-R)
cyano (-CN) and carboxyl (-COOH)
cyano (-CN) and hydroxy (-OH)
hydroxy (-OH) and carboxyl (-COOH)
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Why is hydrogen cyanide often generated in situ when reacting with aldehydes and ketones?
hydrogen cyanide is insoluble in water
hydrogen cyanide is toxic
hydrogen cyanide is expensive
hydrogen cyanide is unstable
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Which of the following reactions represents the oxidation of methanal to methanoic acid?
HCHO + [O] ➔ HCOOH
CHO + [O] ➔ COOH
CHO + 2[O] ➔ CH2OH
HCHO + 2[O] ➔ CH3OH
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Which of the following reactions represents the reduction of a ketone to a secondary alcohol?
CH3CHO + 2[H] ➔ CH3CH2OH
HCHO + 2[H] ➔ CH3OH
CH3COCH3 + 2[H] ➔ CH3CH(OH)CH3
CH3COCH3 + [H] ➔ CH3CH2CHO
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