Aldehydes and ketones

1. The class of compounds containing C=O are called

• a. Aldehydes

  
  

• b. Ketones

• c. Carbonyl Compounds

• d. None of the Above

Which of the following compounds does not contain an -OH group

• a. Phenol

• b. Carboxylic acid

• c. Aldehydes

• d. Alcohols

1. What is the difference between aldehyde and ketones?

b. position of C atoms

c. the number of bonds carbon can form

d. the number of oxygen atoms

• a. position of C=O group

• b. position of C atoms

• the number of bonds carbon can form

• d. the number of oxygen atoms

1. Select carbonyl compounds from the following formulae:

• a. C₄H₁₀O

• b. C₄H₈O

• c. C₄H₈O₂

• d. C₄H₈

5. When reacted with a strong reducing agent, aldehydes turn into

• a. carboxylic acids

• b. ketones

• c. primary alcohols

• d. secondary alcohols

7. When reacted with a strong reducing agent, ketones turn into

• a. carboxylic acids

• b. ketones

• c. primary alcohols

• d. secondary alcohols

7. Which of the following is an isomer of acetone?

• a. ethanal

• b. ethanol

• c. propanol

• d. propanal

8. Aldehyde carbonyl group is always positioned at

• a. Center of the chain

• b. All over the chain

• c. End of the chain

• d. Anywhere on the chain