Chem Exam 3 - EXAM 3 VERSION A CH 313 N Date: 11/19/2007 1....

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EXAM 3 VERSION A CH 313 N Date: 11/19/2007 1. Which is not an example of low-energy radiation? A) red light B) infrared C) blue light D) X-ray 2. The bond angles around an sp 3 -hybridized carbon are ______ degrees. A) 109.5 B) 120 C) 180.5 D) 60 3. What are the products of the complete combustion of cyclooctane? I water II carbon monoxide III carbon dioxide IV oxygen A) I and II only B) II and IV only C) I and III only D) III and IV only 4. What is the pH of a 7.5 × 10 –4 M solution of HNO 3 ? A) 1.00 B) 3.10 C) 5.60 D) 7.40 5. If the pH of a 0.10 M solution is 11.00, then [H 3 O + ] = ______. A) 1.0 × 10 –1 M B) 1.0 × 10 –5 M C) 1.0 × 10 –11 M D) 1.0 × 10 –14 M Page 1
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6. How many quaternary (4º) carbon atoms are there in this molecule? (CH 3 ) 2 CHCH 2 C(CH 3 ) 2 CH 2 C(CH 3 ) 3 A) 0 B) 1 C) 2 D) 3 7. This compound is a(an) _____. A) alcohol B) ketone C) ether D) ester 8. Which functional groups are present in this compound? A) ether, ketone, alcohol B) alcohol, ketone, aldehyde C) alcohol, ester, aldehyde D) ketone, ester, alcohol 9. Which compounds are isomers? (1) (2) (3) A) 1 and 2 only B) 1 and 3 only C) 2 and 3 only D) 1, 2, and 3 Page 2
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10. The hybridization of the carbon atoms in all cycloalkanes is: A) sp 4 B) sp 3 C) sp 2 D) sp 11. This compound is a(an) _____. A) alcohol B) ketone C) ether D) ester 12. Benzene (C 6 H 6 ): A) has a four-membered ring structure with alternating double and single bonds. B) readily reacts with H 2 in the presence of a nickel catalyst. C) undergoes addition reactions much more readily than aliphatic compounds do. D) undergoes substitution reactions take place without the loss of its aromatic structure. 13. To what family does this compound belong? A) aldehyde B) carboxylic acid C) ester D) alcohol 14. The K a of formic acid is 1.77 × 10 –4 . What is the pH of a 1.5 M solution? A) 1.79 B) 2.34 C) 4.76 D) 6.29 Page 3
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15. To what family does this compound belong? CH 3 CH 2 COOH A) aldehyde B) carboxylic acid C) ester D) alcohol 16. How many sp 2 -hybridized carbon atoms are there in this compound? A) 2 B) 4 C) 6 D) 8 17. CH 3 C(CH 3 )=CHCH 2 CH 3 and CH 3 CH 2 C(CH 3 )=CHCH 3 are: A) geometrical (cis-trans) isomers B) constitutional isomers C) stereoisomers D) different compounds that are not isomers 18. Which is not true of benzene? A) The carbon atoms are sp 2 hybridized. B) There is a continuous, circular overlap of the six 2p orbitals. C) The hydrogen atoms are
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This test prep was uploaded on 04/16/2008 for the course CH 313N taught by Professor Johncolapret during the Fall '07 term at University of Texas at Austin.

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Chem Exam 3 - EXAM 3 VERSION A CH 313 N Date: 11/19/2007 1....

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