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CH

Chloe Hicks

Jul 31, 2024

What is the structural relationship between the two molecule shown below? What is the structural relationship between the two molecule shown below? A) constitutional isomers B) enantiomers C) diastereomers D) conformational isomers E) not isomers

A) constitutional isomers
B) enantiomers
C) diastereomers
D) conformational isomers
E) not isomers
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GM

Gisèle Mouawad

Jul 31, 2024

How many diastereomers are there of the molecule shown below? How many diastereomers are there of the molecule shown below? A) 0 B) 1 C) 2 D) 3 E) 6

A) 0
B) 1
C) 2
D) 3
E) 6
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MC

Michelle Carrey

Jul 31, 2024

Which of the following reactive intermediates can best be described as both nucleophilic and strongly basic?

A) carbanions
B) carbocations
C) carbenes
D) free radicals
E) alkanes
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BL

Blair Leclair

Jul 31, 2024

Energy is ________ when bonds are formed and is ________ when bonds are broken; therefore, bond dissociation energies are always ________.

A) released; consumed; exothermic
B) released; consumed; endothermic
C) consumed; released; exothermic
D) consumed; released; endothermic
E) consumed; released; isothermic
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SH

Sarah Holbert

Jul 31, 2024

What reactive species is produced in the initiation step of the free radical chlorination of 2,2-dimethylpropane?

A) a chlorine atom
B) a chlorine radical anion
C) a carbon radical
D) a carbocation
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OG

Olivia Galvan

Jul 31, 2024

Which of the following is a carbene?

A) CH2
Which of the following is a carbene? A) CH<sub>2</sub> <sub> </sub> CHO<sup>-</sup> B) CH<sub>3</sub>CH<sub>2</sub>∙ C) :CCl<sub>2</sub> D) CH<sub>3</sub>CH<sub>2</sub>+ E) NCO<sup>-</sup>
CHO-
B) CH3CH2∙
C) :CCl2
D) CH3CH2+
E) NCO-
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SZ

Salma Zulaika

Jul 31, 2024

Which is a measure of the randomness of a system?

A) entropy
B) enthalpy
C) free energy
D) halogenation
E) stoichiometry
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FA

furkhan ahmed

Jul 31, 2024

Which one of these alkene would be likely to experience a carbocation rearrangement when treated with aqueous acid?

A) Which one of these alkene would be likely to experience a carbocation rearrangement when treated with aqueous acid? A) B) C) D) None of these would undergo a rearrangement.
B) Which one of these alkene would be likely to experience a carbocation rearrangement when treated with aqueous acid? A) B) C) D) None of these would undergo a rearrangement.
C) Which one of these alkene would be likely to experience a carbocation rearrangement when treated with aqueous acid? A) B) C) D) None of these would undergo a rearrangement.
D) None of these would undergo a rearrangement.
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AP

Andrew Pascual

Jul 31, 2024

Which of the following terms correctly describe(s) the structural relationship between cis-1,3-dimethylcyclopentane and trans-1,3-dimethylcyclopentane?

A) enantiomers
B) diastereomers
C) geometric isomers
D) both A and C
E) both B and C
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HC

HyTech Clutch

Jul 31, 2024

In the first propagation step of the free radical chlorination of methane, which of the following occurs?

A) Cl2 dissociates.
B) A chlorine radical abstracts a hydrogen.
C) A carbon radical reacts with Cl2.
D) A carbon radical reacts with a chlorine radical.
E) Two chlorine radicals combine.
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CA

Celene Acuna

Jul 31, 2024

Which of the following statements correctly pertains to a pair of enantiomers?

A) They rotate the plane of polarized light by exactly the same amount and in opposite directions.
B) They rotate the plane of polarized light by differing amounts and in opposite directions.
C) They rotate the plane of polarized light by differing amounts and in the same direction.
D) The have different melting points.
E) They have the same melting point, but they have different boiling points.
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BC

Baddie Curtis Brown

Jul 31, 2024

When the reaction between methane and chlorine is photochemically initiated, which of the following compounds cannot be formed through a termination reaction?

A) CH3Cl
B) HCl
C) CH3CH3
D) Cl2
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RW

Rachel Wysocki

Jul 31, 2024

A reaction of an unknown alkene with MCPBA in dichloromethane followed by work-up with H2O/H+ yielded, as the major product, a racemic mixture of (2S,3S) and (2R,3R) -3-methylpentan-2,3-diol. What is the specific structure of the alkene used in the reaction?

A) (Z) -3-methylpent-2-ene
B) (E) -3-methylpent- 2-ene
C) 2-methylpent-2-ene
D) 2,3-dimethylbut-2-ene
E) none of the above
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TP

Tobie Perkins

Jul 31, 2024

Which of the following correctly expresses the standard Gibbs free energy change of a reaction in terms of the changes in enthalpy and entropy?

A) ΔG° = ΔH° - TΔS°
B) ΔG° = ΔH° + TΔS°
C) ΔG° = ΔS° - TΔH°
D) ΔG° = ΔS° + TΔH°
E) none of the above
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VF

Victoria Fischer

Jul 31, 2024

In the hydrocarbon shown below, how many tertiary hydrogens are present? In the hydrocarbon shown below, how many tertiary hydrogens are present? A) 0 B) 1 C) 2 D) 3 E) 4

A) 0
B) 1
C) 2
D) 3
E) 4
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SA

Samantha Abbott

Jul 31, 2024

Which of the following is true for the initiation step of a free radical chlorination reaction?

A) ΔH° > 0 and ΔS° > 0
B) ΔH° > 0 and ΔS° < 0
C) ΔH° < 0 and ΔS° > 0
D) ΔH° < 0 and ΔS° < 0
E) ΔH° = 0 and ΔS° = 0
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MG

Mindy Gracie Butler

Jul 31, 2024

________ is the use of an optically active reagent or catalyst to convert an optically inactive starting material into an optically active product.

A) Asymmetric induction
B) Racemization
C) Optical reduction
D) Meso effection
E) Chiralization
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SL

Sofia Lewis

Jul 31, 2024

Which of the following compounds is (are) appropriate to promote the cationic polymerization of isobutylene?

A) H2SO4
B) BF3
C) ROOR
D) NaOH
E) both H2SO4 and BF3
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TL

Tabitha Lester

Jul 31, 2024

A mixture of equal amounts of two enantiomers ________.

A) is called a racemic mixture
B) is optically inactive
C) implies that the enantiomers are meso forms
D) both A and B
E) none of the above
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BV

Brookelynne Verrette

Jul 31, 2024

What term describes the structural relationship between (E) - and (Z) -2-pentene?

A) not isomers
B) constitutional isomers
C) enantiomers
D) diastereomers
E) conformers
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