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WorksheetsNucleophilic Substitution at Saturated Carbon - Quiz 1
Total questions: 20
Worksheet time: 10mins
Electrophile is a reagent which can
a) Donate an electron pair in reaction
b) Accept an electron pair in reaction
c) Neither accept nor donate electron pair
d) Both a and b
Nucleophile is a reagent.....
Which can accept electron pair in reaction
Which can act as a Lewis base
Which is nucleus loving species
All of above
In SN2 reaction bond fission is…
Homolytic
Heterolytic
Both a and b
None of these
Which of the following are nucleophiles?
AlCl3 ,BF3
H2O ,NH3
R3C+, NO2+
All of these
5) In SN2 mechanism
a) Nucleophile attacks substrate in fast step
b) Attack of nucleophile is from back side
c) Leaving group departs and then nucleophile attacks
d) There are two steps involved
In SN2 reaction, product is obtained with ……..of configuration.
a) Retention
b) Inversion
c) Racemization
d) Both a and b
7) In nucleophilic substitution reaction which type of bond is in the substrate.
Non polar bond
Polar bond
Both Polar and Nonpolar
None of these
The reaction between methyl bromide and hydroxide ion is example of...
SN2 Reaction
SN1 Reaction
Both SN2 and SN1
SNi Reaction
SN2 reaction is...
Unimolecular reaction
Bimolecular Reaction
Unimolecular and Bimolecular
None of these
SN2 reaction follows...
First order kinetics
Second order kinetic
Third order kinetic
Forth order kinetics
SN2 reaction occurs in...
One step
Two steps
Three steps
None of these
The geometry of the Transition state...
Trigonal Planner
Trigonal Pyramidal
Trigonal Bipyramidal
Tetrahedral
In SN2 Reaction
bond breaking and bond formation takes place in two different steps
bond breaking and bond formation takes place in only one step
Both a and b
None of these
In SN2 reaction the slow step is...
Formation of bond
Braking of bond
Both bond formation and bond breaking is slow step
None of these
In SN2 reaction the attack of Nucleophile is from Backside due to
Steric repulsion
Electrostatic repulsion
Both steric and electrostatic repulsion
None of these
SN2 reaction is ..
Stereospecific
Stereoselective
Both Stereospecific and Stereoselective
None of these
hydroxide is a good leaving group
Yes
No
R- 1-phenyl-2-propanol and S- 1-phenyl-2-propanol are enantiomers of each other
True
False
In SN2 reaction, Optically active compound gives optically active product.
True
False
Carbon atom bearing four different groups is known as
Chiral Carbon atom
Asymmetric Carbon atom
Stereocenter
All of the above
