General, Organic, and Biochemistry

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General, Organic, and Biochemistry 9th edition K. Denniston J. Topping D. Quirk Dorr R. Caret Chapter 13 Copyright © 2017 McGraw-Hill Education. Permission required for reproduction or display

Question 1 An acetal is in equilibrium involving: A) Two alcohol molecules and an aldehyde B) An alcohol and a carboxylic acid C) An alcohol and a ketone D) An alcohol and an aldehyde E) Three alcohols

Question 2 Aldehydes and ketones boil at A) higher temperatures than hydrocarbons. B) higher temperatures than alcohols. C) higher temperatures than carboxylic acids. D) All of these

Question 3 A common name for 5-nonanone is: A) Nonyl ketone B) Dibutyl ketone C) Butyl pentyl ketone D) Dipentyl ketone E) Pentyl pentyl ketone

Question 4 Which of these items is true? A) Aldehydes can form hydrogen bonds with other aldehydes. B) Aldehydes can form hydrogen bonds with ketones. C) Ketones can form hydrogen bonds with other ketones. D) Aldehydes and ketones can form hydrogen bonds with water. E) None of the above.

Question 5 In a positive Benedict’s test: A) Copper ions are oxidized B) Aldehydes are reduced C) Cu1+ is precipitated as an oxide D) A red precipitate becomes a blue solution E) None of these

Question 6 Which of the following will give a positive Benedict’s test? A) Pentane B) 1-Pentene C) Pentanal D) 2-Pentanone E) Pentanoic acid

Question 7 (CH3CH2)2C(OCH3)2 is a(n): A) Hemiacetal B) Acetal C) None of these

Question 8 What is the IUPAC name of α-methylpropionaldehyde? A) 1-Methylpropanal B) 2-Methylpropanal C) 3-Methylpropanal D) Butanal E) None of these

Question 9 Which of these items is true? A) The oxidation of a secondary alcohol can form an aldehyde. B) The oxidation of a tertiary alcohol can form an aldehyde. C) The oxidation of a primary alcohol can form an aldehyde. D) The oxidation of a carboxylic acid can form an aldehyde. E) None of the above.

Question 10 Which of these items is true? A) The oxidation of a secondary alcohol can form a ketone. B) The oxidation of a tertiary alcohol can form a ketone. C) The oxidation of a primary alcohol can form a ketone. D) The oxidation of a carboxylic acid can form a ketone. E) None of the above.

Answer Key – Chapter 13 A B D C