Basic Concepts in Organic Chemistry

1

The decreasing order of nucleophilicity among the nucleophiles is

  1. 3, 2, 1, 4
  2. 4, 3, 2, 1
  3. 2, 3, 1, 4
  4. 1, 2, 3, 4
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2

Due to the presence of an unpaired electron, free radicals are

  1. anions
  2. chemically inactive
  3. chemically reactive
  4. cations
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3

Which of the following is the correct order of decreasing SN2 reactivity? (X is a halogen)

  1. RCH2X > R2CHX > R3CX
  2. R3CX > R2CHX > RCH2X
  3. R2CHX > R3CX > RCH2X
  4. RCHX > R3CX > R2CHX
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4

For which of the following parameters the structural isomers C2H5OH and CH3OCH3 would be expected to have the same values? (Assume ideal behavior)

  1. Boiling points
  2. Vapor pressure at the same temperature
  3. Gaseous densities at the same temperature and pressure
  4. Heat of vaporization
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5

The alkene that exhibits geometrical isomerism is

  1. 2-methyl propene
  2. 2 methyl 2 butene
  3. 2-Butene
  4. propene
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6

The IUPAC name of neopentane is

  1. 2 – methylpropane
  2. 2, 2 – dimethylpropane
  3. 2 – methylbutane
  4. 2, 2 – dimethylbutane
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7

The IUPAC name of CH3COCH(CH3)2 is

  1. isopropylmethyl ketone
  2. 4-­methylisopropyl ketone
  3. 2-­methyl­-3-­butanone
  4. 3-­methyl-­2-­butanone
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