Question 1

What is true of every nucleophile?

  A  

it attacks a double bond

  B  

it donates a lone pair of electrons

  C  

it is a single atom

  D  

it is negatively charged

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Question 2

Many, but not all, organic reactions need to be heated before a reaction occurs.

Which reaction occurs quickly at room temperature, 20°C?

  A  

C2H4 + Br2 ➔ C2H4Br2

  B  

C2H4 + H2O ➔ CH3CH2OH

  C  

CH3CH2OH ➔ C2H4 + H2O

  D  

CH3CH2OH + HBr ➔ CH3CH2Br + H2O

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Question 3

Which organic reaction is an example of nucleophilic substitution?

  A  

CH3CH2Br + NaOH ➔ CH2CH2 + H2O + NaBr

  B  

CH3CH2Br + NaOH ➔ CH3CH2OH + NaBr

  C  

CH2CH2 + HCl ➔ C2H5Cl

  D  

C2H6 + Cl2 ➔ C2H5Cl + HCl

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Question 4

Which reaction will give CH3CH2CH(OH)CH2CH3 as a product?

  A  

reduction of CH3CH2CH2CH2CHO

  B  

treatment of CH2=CHCH2CH2CH3 with conc. sulfuric acid followed by water

  C  

heating CH3CH2CH2CH=CH2 with steam and phosphoric acid under pressure


  D  

treatment of CH3CH=CHCH2CH3 with conc. sulfuric acid followed by water

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Question 5

Which statement about an electrophile is correct?

  A  

it is an electron pair acceptor

  B  

it is a proton donor

  C  

it is a negative ion

  D  

it is a species with an unpaired electron

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