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- Functional group contained in compound CH3-CH2-C-O-CH3 || O A. Amine B. Ester c. Amide d. Thiol e. Carboxylic acidAspirin was first synthesized near the end of the 19th century. Chemists in which country first synthesized aspirin? O a. England O b. France O c. United States d. GermanyWhich of the following can hydrogen bond with water? A. all of the above B. Carbon dioxide C. Methane D. Acetic acid
- Which of the following pure substances will have hydrogen bonds ? a. acetone --à b. dimethy ether CH3-O-CH3 c. methanol H3C-OH d. acetone and methanol e. dimethy ether and methanol14. What is the name of the following molecule? HO. a. butanoic acid b. 1-hydroxypentanal c. 1-hydroxypentanone d. pentanoic acidWhat is natural gas? a. a gas that forms from decaying vegetation b. a mixture of hydrocarbon gases, mostly methane c. a gas that forms naturally from coal d. naturally occurring hydrogen
- Match the following molecules with the name of their functional group. A. Amine B. Amide C. Alcohol D.Ether E. Aldehyde F. Ketone G.Carboxcylic acid E.Ester Thanks.Particles of active ingredients used in compounding powders must be C Select one: O a. a. lubricated O b. geometrically diluted O c. reduced to the same size O d. moistened with distilled waterWhich functional group contains two oxygen atoms, one of which is double bonded to a carbon? a. alcohol b. ketone c. ester d. aldehyde
- A. Both statements are true and related B. Both statements are true but not related C. The first statement is true and the second statement is false D. The first statement is false and the second statement is true E. Both statements are false 25. Quastenasy ammonium salts with hydrocarbon chains are used as detergent BECAUSE the presence of hydrophobic tail and ionic head facilitates its detergent action.QUESTION 4 4. Match the following compounds with the correct CLASS: A. Alcohol H H B. Aldehyde H C C-C C C. Carboxylate salt D. Ester O-H E. Carboxylic Acid H H H. F. Methyl 2-hydroxybenzoate (common name: Methyl Salicylate) CH,CH,CH,OCCH, H3C. ONaA Alanie Fon What is the functional group found in the following molecule? H,C CH H. Select one: a. ether b. amine C. amide d. ester e. phenol