1 Nadia is studying ethers. She learns that ethers were once used as anesthetics. Which ether was commonly used as an anesthetic? A Diethyl ether B Methyl ether C Ethylene oxide D Dimethyl ether
2 Usman is learning about carboxylic acids. He understands that carboxylic acids are weak acids. Which of the following is a weak carboxylic acid? A Sulfuric acid B Hydrochloric acid C Acetic acid D Nitric acid
3 Xia is studying aldehydes and ketones. She learns that aldehydes contain a carbonyl group at the end of a carbon chain. Which of the following is an aldehyde? A Acetone B Acetaldehyde C Ethanol D Acetic acid
4 Khalid is learning about haloalkanes. He knows that haloalkanes are used as refrigerants. Which of the following was commonly used as a refrigerant? A Chlorofluorocarbons (CFCs) B Ethanol C Acetic acid D Acetone
5 Vera is studying haloalkanes. She learns that haloalkanes are alkanes with halogen atoms. Which of the following is a haloalkane? A Chloromethane B Methanol C Ethanol D Acetic acid
6 Alkenes are hydrocarbons having: A Only single bonds B At least one double bond C At least one triple bond D No bonds
8 Khalid is learning about isomerism. He understands that isomers are compounds with the same molecular formula but different structures. Which of the following is an example of isomers? A Methane and ethane B Butane and isobutane C Ethene and ethyne D Propane and butane
10 Bongani is studying homologous series. He knows that members of a homologous series have similar chemical properties. What is the reason for similar chemical properties? A They have the same molecular formula B They have the same functional group C They have different functional groups D They have different carbon chains
11 George is learning about alkynes. He understands that alkynes are used in welding. Which alkyne is commonly used in oxyacetylene welding? A Methane B Ethyne C Propane D Butene
12 Yara is learning about ethers. She understands that ethers have an oxygen atom connected to two carbon groups. Which of the following is an ether? A Diethyl ether B Ethanol C Acetone D Acetic acid
15 Diana is studying saturated and unsaturated hydrocarbons. She learns that unsaturated hydrocarbons contain multiple bonds. Which of the following is an unsaturated hydrocarbon? A Methane B Ethene C Propane D Butane
16 Omar is learning about homocyclic and heterocyclic compounds. He understands that homocyclic compounds have rings made of the same element. Which of the following is a homocyclic compound? A Cyclohexane B Pyridine C Furan D Thiophene
19 Hina is studying unsaturated hydrocarbons. She learns that alkenes contain double bonds. What is the general formula for alkenes? A CnH2n+2 B CnH2n C CnH2n-2 D CnH2n+1
20 Omar is learning about amines. He understands that amines are important in biology. Which amine is a component of amino acids? A Methylamine B Ethylamine C Aniline D All of the above
21 Which organic compound is used as a solvent? A Ethanol B Sodium chloride C Calcium carbonate D Sulfuric acid
22 Mohamed is learning about aldehydes and ketones. He knows that aldehydes are used in the production of plastics. Which aldehyde is used to make Bakelite? A Acetaldehyde B Formaldehyde C Acetone D Benzaldehyde
23 Xia is studying the functional group of amines. She learns that amines contain a nitrogen atom bonded to carbon groups. Which of the following is a primary amine? A Methylamine B Dimethylamine C Trimethylamine D Aniline
24 Fatima is studying saturated hydrocarbons. She learns that alkanes are saturated hydrocarbons. What does saturated mean in this context? A Contains double bonds B Contains only single bonds between carbon atoms C Contains triple bonds D Contains rings
25 Ahmed is learning about organic compounds in his chemistry class. He understands that organic compounds contain carbon. Which of the following is an organic compound? A Carbon dioxide B Methane C Sodium chloride D Water