Aldehydes & Ketones

Q. What is the effect of increasing the carbon chain length on the boiling point of aldehydes?
  • A. Decreases
  • B. Increases
  • C. Remains the same
  • D. Varies randomly
Q. What is the effect of increasing the number of carbon atoms in aldehydes on their boiling points?
  • A. Decreases
  • B. Increases
  • C. Remains constant
  • D. Varies unpredictably
Q. What is the effect of increasing the steric hindrance on the reactivity of aldehydes and ketones?
  • A. Increases reactivity
  • B. Decreases reactivity
  • C. No effect
  • D. Reactivity depends on solvent
Q. What is the functional group present in ketones?
  • A. -CHO
  • B. -CO-
  • C. -OH
  • D. -C=O
Q. What is the general formula for ketones?
  • A. CnH2nO
  • B. CnH2n+2O
  • C. CnH2n-2O
  • D. CnH2nO2
Q. What is the IUPAC name of CH3CHO?
  • A. Ethanal
  • B. Propanal
  • C. Acetaldehyde
  • D. Butanal
Q. What is the IUPAC name of CH3COCH2CH3?
  • A. Butan-2-one
  • B. Butanal
  • C. Propan-2-one
  • D. Pentanal
Q. What is the IUPAC name of CH3COCH2CHO?
  • A. 3-oxobutanal
  • B. 4-oxobutanal
  • C. 2-oxobutanal
  • D. 2-butanone
Q. What is the IUPAC name of CH3COCH3?
  • A. Propanal
  • B. Butan-2-one
  • C. Acetone
  • D. Ethyl methyl ketone
Q. What is the main difference between aldehydes and ketones?
  • A. Position of the carbonyl group
  • B. Number of carbon atoms
  • C. Presence of hydrogen
  • D. All of the above
Q. What is the main product when an aldehyde reacts with a Grignard reagent?
  • A. Alcohol
  • B. Ketone
  • C. Carboxylic acid
  • D. Alkane
Q. What is the main product when benzaldehyde is treated with Grignard reagent followed by hydrolysis?
  • A. Benzyl alcohol
  • B. Benzyl ketone
  • C. Benzyl aldehyde
  • D. Benzyl ether
Q. What is the main product when propan-2-one is treated with sodium bisulfite?
  • A. Sodium propan-2-one sulfonate
  • B. Propan-2-ol
  • C. Propan-2-one bisulfite adduct
  • D. None of the above
Q. What is the main product when propanal is treated with excess alcohol in the presence of an acid catalyst?
  • A. Aldol
  • B. Acetal
  • C. Ketone
  • D. Carboxylic acid
Q. What is the main product when propanal is treated with excess Grignard reagent followed by hydrolysis?
  • A. Propan-1-ol
  • B. Propan-2-ol
  • C. Propan-1,2-diol
  • D. Butan-2-ol
Q. What is the main product when propanal is treated with excess hydrogen in the presence of a catalyst?
  • A. Propan-1-ol
  • B. Propan-2-ol
  • C. Propanoic acid
  • D. Propane
Q. What is the product of the oxidation of a primary alcohol?
  • A. Aldehyde
  • B. Ketone
  • C. Carboxylic acid
  • D. Alkane
Q. What is the product of the reaction between acetone and iodine in the presence of a base?
  • A. Iodoacetone
  • B. Iodoform
  • C. Bromoacetone
  • D. Chloroacetone
Q. What is the product of the reaction between an aldehyde and a Grignard reagent?
  • A. Alcohol
  • B. Ketone
  • C. Carboxylic acid
  • D. Alkane
Q. What is the product of the reaction between an aldehyde and a primary amine?
  • A. Imine
  • B. Amide
  • C. Amino acid
  • D. Alcohol
Q. What is the product when propan-2-one reacts with iodine in the presence of a base?
  • A. Iodoform
  • B. Bromoform
  • C. Chloroform
  • D. No reaction
Q. Which of the following compounds can be classified as a ketone?
  • A. C3H6O
  • B. C2H4O
  • C. C4H8O
  • D. C5H10O
Q. Which of the following compounds can be distinguished from aldehydes using Tollen's reagent?
  • A. Acetone
  • B. Formaldehyde
  • C. Benzaldehyde
  • D. Propionaldehyde
Q. Which of the following compounds can be formed by the reaction of an aldehyde with a Grignard reagent?
  • A. Alcohol
  • B. Carboxylic acid
  • C. Ketone
  • D. Ester
Q. Which of the following compounds can be reduced to an alcohol using NaBH4?
  • A. Aldehyde
  • B. Ketone
  • C. Both Aldehyde and Ketone
  • D. None of the above
Q. Which of the following compounds can be reduced to an alcohol?
  • A. Aldehyde
  • B. Ketone
  • C. Both Aldehyde and Ketone
  • D. None of the above
Q. Which of the following compounds can be used to distinguish between aldehydes and ketones?
  • A. Benedict's solution
  • B. Tollens' reagent
  • C. Fehling's solution
  • D. All of the above
Q. Which of the following compounds can undergo aldol condensation?
  • A. Acetone
  • B. Benzaldehyde
  • C. Formaldehyde
  • D. Ethyl acetate
Q. Which of the following compounds cannot be oxidized?
  • A. Aldehyde
  • B. Primary alcohol
  • C. Secondary alcohol
  • D. Ketone
Q. Which of the following compounds is an aldehyde?
  • A. C2H5OH
  • B. CH3CHO
  • C. C3H6O
  • D. C6H12O6
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