Classification of organic compounds functional groups and homologous series - One Line Questions

1. Which functional group is characteristic of esters? — -COOR'
2. Which of the following is NOT a functional group? — -CH3
3. Which of the following is an example of an aldehyde? — Ethanal
4. The functional group -X (where X = F, Cl, Br, I) is characteristic of: — Haloalkanes
5. The functional group -O- linking two alkyl or aryl groups is characteristic of: — Ethers
6. The compound CH3OCH3 belongs to which homologous series? — Ethers
7. The functional group -C=O is present in both: — Aldehydes and Ketones
8. What is the functional group in ethanoic acid? — Carboxylic acid
9. The functional group -OH is characteristic of which class of organic compounds? — Alcohols
10. Which class of compounds contains the functional group C=O bonded to two alkyl or aryl groups? — Ketones
11. Which of the following has the general formula CnH2n-2? — Alkynes
12. Which class of organic compounds has the functional group -C≡C-? — Alkynes
13. The functional group -C≡N is characteristic of: — Nitriles
14. Which functional group is present in acetamide? — Amide
15. The functional group -NH2 is characteristic of: — Amines
16. The functional group -CONH2 is characteristic of: — Amides
17. Which of the following is an example of an amine? — Methylamine
18. The presence of a benzene ring in a molecule indicates it is: — An aromatic compound
19. Which of the following is a cyclic hydrocarbon? — Benzene
20. Aliphatic compounds are those that do not contain: — A benzene ring
21. The functional group -O-C(=O)-R' is characteristic of: — Esters
22. Compounds in a homologous series differ from each other by a: — CH2 group
23. What is the general formula for alkynes? — CnH2n-2
24. The general formula for alkanes is: — CnH2n+2
25. The general formula for alkenes is: — CnH2n
26. Which of the following is an aromatic compound? — Naphthalene
27. Which of the following is an example of an ether? — Diethyl ether
28. A homologous series is a group of organic compounds that have the same functional group and: — Similar chemical properties
29. Which functional group is represented by -COOH? — Carboxylic acid
30. Which of the following is an example of an alkane? — Propane
31. Which of the following is a saturated hydrocarbon? — Ethane
32. Which is the simplest alkyne? — Ethyne
33. Which of the following is a diene (a hydrocarbon with two double bonds)? — Butadiene
34. A molecule containing only carbon and hydrogen atoms is classified as a: — Hydrocarbon
35. Compounds with the same molecular formula but different structural formulas are called: — Isomers
36. The functional group -CHO is characteristic of: — Aldehydes
37. Which of the following is a tertiary alcohol? — 2-Methylpropan-2-ol
38. Which of the following is an ester? — Methyl acetate
39. Which of the following is a ketone? — Propanone
40. Which of the following compounds belongs to the same homologous series as ethanol? — Propanol
41. A compound with the molecular formula C3H6 can be: — Propene
42. Which of the following is an unsaturated hydrocarbon? — Propene
43. The homologous series of ketones has the general formula: — R-CO-R'
44. The homologous series of alcohols has the general formula: — R-OH
45. The homologous series of carboxylic acids has the general formula: — R-COOH
46. The homologous series of aldehydes has the general formula: — R-CHO
47. What distinguishes a primary alcohol from a secondary alcohol? — The position of the -OH group relative to alkyl groups
48. The functional group -SH is characteristic of: — Thiols
49. The functional group -SO3H is characteristic of: — Sulfonic acids
50. Which of the following is an example of a heterocyclic compound? — Pyridine
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