CHM2210 PS 5 – Flashcards
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(2) What is the degree of unsaturation in a molecule with a molecular formula of C8H11Br? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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3
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(3) How many units of unsaturation are in (Z)-8-chloro-3-methoxy-5- methylenecyclooctene? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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3
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(4) How many units of unsaturation are in spiro[8.9]octadecane? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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2
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(5) How many units of unsaturation are in spiro[4378.442]alkane? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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2
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(6) How many units of unsaturation are in norbornadiene? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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4
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(7) Which compound has the shortest carbon/carbon bond? (A) acetylene (B) 1-pentene (C) cis-2-pentene (D) benzene (E) pentane
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acetylene
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(8) What is the equilibrium constant between the following: [2-methyl-2-butene] [the structure after rotating around the double bond] ? (A) 10?²² (B) 10?¹ (C) 10? (D) 10¹ (E) 10²
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10?
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(9) How many double bonds does 1,4-divinylcyclohexane have? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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2
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(10) How many double bonds does 1,4-diallylcyclohexane have? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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2
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(11) How many units of unsaturation does 1,4-diallylcyclohexane have? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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3
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(15) How many different stereoisomers are there for 1,3-pentadiene? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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2
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(17) If a sesquiterpene has formula c15h24, how many carbons are in a hemiterpene? (A) 0 (B) 5 (C) 10 (D) 12 (E) 15
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5
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(20) How many unique structures are there for a mono-alkene with formula c5h8? Count enantiomeric pairs as one structure here. (A) 8 (B) 9 (C) 10 (D) 11 (E) 12
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12
