WorksheetsHyperconjugation effect
Total questions: 15
Worksheet time: 8mins
Which of the following is known as Baker-Nathan effect?
Mesomeric effect
Inductive effect
Hyperconjugation
Electromeric effect
Hyperconjugation involves the delocalisation of __________ bond orbital
s
σ
π
p
Number of hyperconjugation structures in isopropyl radical is __________
3
6
9
12
Larger the number of hyperconjugation structures, the stability of free radicals will __________
Increase
Decrease
No relation
It involves Baker-Nathan constant
On increasing what hyperconjugation structures increase?
Stability
Temperature
α carbon
hydrogen attached to α carbon
Ethene is devoid of any alpha hydrogen so hyperconjugation is not possible.
True
False
Find the product of this reaction?
o-isobutyl p-nitro toluene
p-isobutyl o-nitro toluene
p-isobutyl o-nitro phenol
p-isobutyl m-nitro benzene
Which of the following carbocation is most stable
Find out the order of reactivity of the following compound towards electrophilic substitution reaction
methyl benzene
ethyl benzene
iso propyl benzene
tert butyl benzene
No bond resonance is known as
inductive effect
mesomeric effect
hyperconjugation
electromeric effect
Alkyl group are o and p directive because of
inductive effect
resonance
hyperconjugation
electromeric effect
The compound that can be most readily sulphonated is __________
Benzene
Nitro benzene
Toluene
Chorobenzene
In which of the following cases the effect is a special type of hyperconjugation effect?
(also known as the reverse hyperconjugation effect)
3-chloropent-1-ene
2-chlorocyclopentane
2-bromobutane
benzene
Which of the following effect is responsible for shortening of C-C bond adjacent to -C≡N in acetonitrile and the C-C bond adjacent to the -C≡C in propyne?
electromeric effect
inductive effect
mesomeric effect
no bond resonance effect
If R=CH3 then tell which of the following is most stable?
RCH=CR2
R2C=CHR
R2C=CR2
RHC=CRH
