Chapter 24

Chapter 24 - Chapter 24 Organic Chemistry 1 Alkanes have...

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Page 408 Chapter 24: Organic Chemistry 1. Alkanes have the general formula A) C n H 2n–4 B) C n H 2n–2 C) C n H 2n D) C n H 2n+2 E) C n H 2n+4 Ans: D Category: Easy Section: 24.2 2. Alkenes have the general formula A) C n H 2n–4 B) C n H 2n–2 C) C n H 2n D) C n H 2n+2 E) C n H 2n+4 Ans: C Category: Easy Section: 24.2 3. Alkynes have the general formula A) C n H 2n–4 B) C n H 2n–2 C) C n H 2n D) C n H 2n+2 E) C n H 2n+4 Ans: B Category: Easy Section: 24.2 4. Cycloalkanes have the general formula A) C n H 2n–4 B) C n H 2n–2 C) C n H 2n D) C n H 2n+2 E) C n H 2n+4 Ans: C Category: Easy Section: 24.2 5. Unsaturated hydrocarbons A) contain at least one double or triple carbon-carbon bond. B) contain at least one element other than hydrogen and carbon. C) contain the maximum number of hydrogens that can bond with the carbon atoms present. D) cannot form structural isomers. E) cannot undergo addition reactions. Ans: A Category: Easy Section: 24.2 6. Which of these molecules is unsaturated ? A) CH 4 B) C 2 H 6 C) C 4 H 6 D) C 5 H 12 E) C 6 H 14 Ans: C Category: Medium Section: 24.2 7. The formula CH 3 CH 2 CH 2 CH=CH 2 represents A) an alkane. D) an alkyne. B) a cycloalkane. E) an aromatic compound. C) an alkene. Ans: C Category: Easy Section: 24.2 8. Which one of these hydrocarbons does not have isomers? A) C 7 H 16 B) C 6 H 14 C) C 5 H 10 D) C 4 H 8 E) C 3 H 8 Ans: E Category: Medium Section: 24.2 9. How many structural isomers are there of C 4 H 10 ? A) 4 B) 6 C) 2 D) 8 E) 10 Ans: C Category: Medium Section: 24.2
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Chapter 24: Organic Chemistry Page 409 10. A particular structural isomer of C 6 H 14 is shown below. Which of the following structures represents a different structural isomer of C 6 H 14 than the one shown above? Ans: C Category: Medium Section: 24.2 11. Which of these pairs are geometric isomers ? A) CH 3 CH 2 - O - CH 2 CH 3 and CH 3 CH 2 CH 2 CH 2 OH B) C) D) Ans: D Category: Medium Section: 24.2
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Chapter 24: Organic Chemistry Page 410 12. The two molecules represented below are examples of A) isomers D) carboxylic acids B) isotopes E) unsaturated hydrocarbons C) alcohols Ans: A Category: Medium Section: 24.2 13. The two molecules represented below are examples of CH 3 –CH 2 –O–CH 2 CH 3 CH 3 CH 2 CH 2 CH 2 –OH A) geometric isomers. D) stereoisomers. B) structural isomers. E) None of these. C) optical isomers. Ans: B Category: Medium Section: 24.2 14. Which of these species is an aromatic compound? A) C 2 H 2 B) C 6 H 12 C) C 6 H 4 Br 2 D) C 5 H 10 E) C 2 H 4 Br 2 Ans: C Category: Medium Section: 24.3 15. The octane rating of gasoline refers to its A) percentage C 8 H 18 by volume. B)
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Chapter 24 - Chapter 24 Organic Chemistry 1 Alkanes have...

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