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WorksheetsOChem Chapter 5
Total questions: 28
Worksheet time: 15mins
For tertiary alkyl halide with strong base, which mechanism would occur?
E1
E2
SN1
SN2
For tertiary alkyl halide with weak base, which mechanism would occur?
E1
E2
SN 1
SN 2
For primary alkyl halide with strong and small base, which mechanism would occur?
E1
E2
SN1
SN2
For primary alkyl halide with strong bulky base, which mechanism would occur?
E1
E2
SN1
SN2
For secondary alkyl halide with strong and small base, which mechanism would occur?
E1
E2
SN1
SN2
For secondary alkyl halide with strong bulky base, which mechanism would occur?
E1
E2
SN1
SN2
For secondary alkyl halide with weak base, which mechanism would occur?
E1
E2
SN1
SN2
An E2 reaction exhibits
Second order kinetics
First order kinetics
The reaction for E2 is
Unimolecular
Bimolecular
The rate equation for E2 is
Rate = kr[R–X][Base]
Rate = kr[R–X]
E2 mechanism is
Two steps mechanism
One step mechanism
Which is TRUE for E2 mechanism?
As strength of base increases, rate of E2 decreases.
As strength of base increases, rate of E2 increases.
As strength of base decreases, rate of E2 increases.
Which is TRUE for E2 mechanism?
As ability of leaving group increases, rate of E2 increases.
As ability of leaving group decreases, rate of E2 increases.
E2 mechanism is favoured by
Strong bases
Weak bases
Examples of strong bases for E2
-OH
H2O
-OR
ROH
Solvent for E2 is
Polar aprotic solvent
Polar protic solvent
Which is TRUE for order of reactivity of RX in E2 ?
R-F > R-CL > R-BR > R-I
R-F < R-CL < R-BR < R-I
R-F > R-I > R-BR > R-CL
An E1 reaction exhibits
Second order kinetics
First order kinetics
The reaction for E1 is
Unimolecular
Bimolecular
The rate equation for E1 is
Rate = kr[R–X][Base]
Rate = kr[R–X]
E1 mechanism is
Two steps mechanism
One step mechanism
E1 mechanism is favoured by
Strong bases
Weak bases
Examples of weak bases for E1
H2O
-OR
-OH
ROH
Does Zaitsev rule applies to E1 ?
Yes
No
Solvent for E1 is
Polar protic solvent
Polar aprotic solvent
Rate of E1 increases when
The number of R group on carbon decreases
The number of R group on carbon increases
According to Zaitsev rule, the major product has
less substituted double bond
more substituted double bond
According to Zaitsev rule, the major product is
The more stable stereoisomer
The less stable stereoisomer
