CHE202 - Practice Quiz 1 Answers

CHE202 - Practice Quiz 1 Answers - CHE 202/204 Name:...

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CHE 202/204 Practice Quiz 1 (50 Pts)-30 minutes Dr. Khalid Ahsan Name: Student #: Answer all questions Part A (16 questions, 2.5 pt each) 1) Which compound would be expected to show intense IR absorption at 3300 cm -1 ? A) CH 3 C CCH 3 B) butane C) but-1-ene D) CH 3 CH 2 C CH 2) Deduce a possible structure for the compound with the IR absorptions below. C 3 H 3 Br: 3300, 2900, 2100 cm -1 3) The energy difference between the allowed spin states for an 1 H nucleus is __________ the strength of the external magnetic field in which it is placed. A) independent of B) directly proportional to C) inversely proportional to D) exponentially related to 4) In IR spectroscopy, the C–O bond has a __________ frequency than the C–N bond because __________. A) higher, an O atom has more mass than an N atom B) lower, an O atom has more mass than an N atom C) higher, an O atom has more electronegativity than an N atom D) lower, an O atom has more electronegativity than an N atom 5) What m/z characterizes a strong peak in the mass spectrum of cyclopentanol? A) 86
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This note was uploaded on 10/10/2010 for the course CHE 202 taught by Professor Richard during the Spring '05 term at SUNY Buffalo.

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CHE202 - Practice Quiz 1 Answers - CHE 202/204 Name:...

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