Q.1
A covalent bond between two atoms may be broken in different ways depending upon __________
  • a) Nature of given organic compound
  • b) Nature of attacking reagent
  • c) Reaction conditions
  • d) All of the mentioned
Q.2
Select the incorrect statement from the following option.
  • a) Fission of covalent bond leads to the generation of intermediate organic species
  • b) They are stable and long-lived
  • c) The presence of reactive intermediates is confirmed by their detection by spectroscopic methods
  • d) None of the mentioned
Q.3
The breaking of a covalent bond in such a way that each atom separates with one electron of the shared pair is called __________
  • a) Homolytic fission
  • b) Heterolytic fission
  • c) Monolytic fission
  • d) Morpholytic fission
Q.4
The breaking of a covalent bond in such a way that both the electrons of shared pair are carried away by one of atom is called __________
  • a) Morpholytic fission
  • b) Monolytic fission
  • c) Heterolytic fission
  • d) Homolytic fission
Q.5
Heterolytic fission takes place between two atoms of widely different __________
  • a) Conductivity
  • b) Viscosity
  • c) Electronegtivity
  • d) All of the mentioned
Q.6
Select the incorrect statement from the following option.
  • a) Heterolytic fission takes place generally in a polar solvent
  • b) Heterolytic fission takes place usually at higher temperatures
  • c) Cations and anions formed are generally carbon-based
  • d) None of the mentioned
Q.7
Which of the following is intermediate organic species based on carbon formed by homolytic fission?
  • a) Carbenes
  • b) Carbo-cations
  • c) Carbanions
  • d) Free radicals
Q.8
Which of the following is intermediate organic species based on carbon formed by photolysis?
  • a) Carbenes
  • b) Carbo-cations
  • c) Carbanions
  • d) Free radicals
Q.9
Triplet carbene is more stable than singlet carbene.
  • a) True
  • b) False
Q.10
The shape of carbanion is __________
  • a) Linear
  • b) Trigonal planar
  • c) Pyramidal
  • d) Bent
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