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Engineering Chemistry
Engineering Chemistry Multiple Choice
Quiz 1
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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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