231697
for an electrophilic aromatic substitution reaction.
1 chlorine is o-p directing group and also electron releasing group
2 chlorine is o-p directing group and also electron withdrawing group
3 chlorine is meta directing group and also electron releasing group
4 chlorine is meta directing group and also electron withdrawing group.
Explanation:
Aromatic electrophilic substitution reaction is a useful reactions of benzene. This is because benzene ring contains a delocalized. Its molecular orbital containing six N-electron and thus, acts as a source of electron for the attacking electrophilic. Chlorine is an ortho Para directing group which is explained on the basis of resonance structure. Form the above resonating structure we can see that electron density is high at ortho and Para Position in II and III. Thus, we can say, apart from chlorine being ortho and para directing it is also electron withdrawing group.
J and K CET-(2012)
GENERAL ORGANIC CHEMISTRY
231699
Which of the following shows the correct reaction for nitrobenzene reduction?
1 Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce aniline.
2 Nitrobenzene reacts with $\mathrm{LiAlH}_{4}$ to produce phenyl hydroxylamine.
3 Nitrobenzene reacts with $\mathrm{Fe}$ and $\mathrm{HCL}$ to produce nitrosobenzene.
4 Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine.
Explanation:
Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine Nitrobenzene react with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine
J and K CET-(2018)
GENERAL ORGANIC CHEMISTRY
231700
The most stable carbocation among the following is
1
2
3
4
Explanation:
Stability of carbocation depends on magnitude of + I group. As the + I group increases on carbocation stability of carbocation also increases.
J and K CET-(2019)
GENERAL ORGANIC CHEMISTRY
231701
The attacking reagent in the nitration of benzene is
1 Nitrate ion
2 nitronium ion
3 nitrosonium ion
4 nitrogen radical
Explanation:
The attacking reagent in the nitration of benzene is nitronium ion.
231697
for an electrophilic aromatic substitution reaction.
1 chlorine is o-p directing group and also electron releasing group
2 chlorine is o-p directing group and also electron withdrawing group
3 chlorine is meta directing group and also electron releasing group
4 chlorine is meta directing group and also electron withdrawing group.
Explanation:
Aromatic electrophilic substitution reaction is a useful reactions of benzene. This is because benzene ring contains a delocalized. Its molecular orbital containing six N-electron and thus, acts as a source of electron for the attacking electrophilic. Chlorine is an ortho Para directing group which is explained on the basis of resonance structure. Form the above resonating structure we can see that electron density is high at ortho and Para Position in II and III. Thus, we can say, apart from chlorine being ortho and para directing it is also electron withdrawing group.
J and K CET-(2012)
GENERAL ORGANIC CHEMISTRY
231699
Which of the following shows the correct reaction for nitrobenzene reduction?
1 Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce aniline.
2 Nitrobenzene reacts with $\mathrm{LiAlH}_{4}$ to produce phenyl hydroxylamine.
3 Nitrobenzene reacts with $\mathrm{Fe}$ and $\mathrm{HCL}$ to produce nitrosobenzene.
4 Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine.
Explanation:
Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine Nitrobenzene react with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine
J and K CET-(2018)
GENERAL ORGANIC CHEMISTRY
231700
The most stable carbocation among the following is
1
2
3
4
Explanation:
Stability of carbocation depends on magnitude of + I group. As the + I group increases on carbocation stability of carbocation also increases.
J and K CET-(2019)
GENERAL ORGANIC CHEMISTRY
231701
The attacking reagent in the nitration of benzene is
1 Nitrate ion
2 nitronium ion
3 nitrosonium ion
4 nitrogen radical
Explanation:
The attacking reagent in the nitration of benzene is nitronium ion.
231697
for an electrophilic aromatic substitution reaction.
1 chlorine is o-p directing group and also electron releasing group
2 chlorine is o-p directing group and also electron withdrawing group
3 chlorine is meta directing group and also electron releasing group
4 chlorine is meta directing group and also electron withdrawing group.
Explanation:
Aromatic electrophilic substitution reaction is a useful reactions of benzene. This is because benzene ring contains a delocalized. Its molecular orbital containing six N-electron and thus, acts as a source of electron for the attacking electrophilic. Chlorine is an ortho Para directing group which is explained on the basis of resonance structure. Form the above resonating structure we can see that electron density is high at ortho and Para Position in II and III. Thus, we can say, apart from chlorine being ortho and para directing it is also electron withdrawing group.
J and K CET-(2012)
GENERAL ORGANIC CHEMISTRY
231699
Which of the following shows the correct reaction for nitrobenzene reduction?
1 Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce aniline.
2 Nitrobenzene reacts with $\mathrm{LiAlH}_{4}$ to produce phenyl hydroxylamine.
3 Nitrobenzene reacts with $\mathrm{Fe}$ and $\mathrm{HCL}$ to produce nitrosobenzene.
4 Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine.
Explanation:
Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine Nitrobenzene react with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine
J and K CET-(2018)
GENERAL ORGANIC CHEMISTRY
231700
The most stable carbocation among the following is
1
2
3
4
Explanation:
Stability of carbocation depends on magnitude of + I group. As the + I group increases on carbocation stability of carbocation also increases.
J and K CET-(2019)
GENERAL ORGANIC CHEMISTRY
231701
The attacking reagent in the nitration of benzene is
1 Nitrate ion
2 nitronium ion
3 nitrosonium ion
4 nitrogen radical
Explanation:
The attacking reagent in the nitration of benzene is nitronium ion.
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GENERAL ORGANIC CHEMISTRY
231697
for an electrophilic aromatic substitution reaction.
1 chlorine is o-p directing group and also electron releasing group
2 chlorine is o-p directing group and also electron withdrawing group
3 chlorine is meta directing group and also electron releasing group
4 chlorine is meta directing group and also electron withdrawing group.
Explanation:
Aromatic electrophilic substitution reaction is a useful reactions of benzene. This is because benzene ring contains a delocalized. Its molecular orbital containing six N-electron and thus, acts as a source of electron for the attacking electrophilic. Chlorine is an ortho Para directing group which is explained on the basis of resonance structure. Form the above resonating structure we can see that electron density is high at ortho and Para Position in II and III. Thus, we can say, apart from chlorine being ortho and para directing it is also electron withdrawing group.
J and K CET-(2012)
GENERAL ORGANIC CHEMISTRY
231699
Which of the following shows the correct reaction for nitrobenzene reduction?
1 Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce aniline.
2 Nitrobenzene reacts with $\mathrm{LiAlH}_{4}$ to produce phenyl hydroxylamine.
3 Nitrobenzene reacts with $\mathrm{Fe}$ and $\mathrm{HCL}$ to produce nitrosobenzene.
4 Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine.
Explanation:
Nitrobenzene reacts with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine Nitrobenzene react with $\mathrm{Zn}$ dust and $\mathrm{NH}_{4} \mathrm{Cl}$ to produce phenyl hydroxylamine
J and K CET-(2018)
GENERAL ORGANIC CHEMISTRY
231700
The most stable carbocation among the following is
1
2
3
4
Explanation:
Stability of carbocation depends on magnitude of + I group. As the + I group increases on carbocation stability of carbocation also increases.
J and K CET-(2019)
GENERAL ORGANIC CHEMISTRY
231701
The attacking reagent in the nitration of benzene is
1 Nitrate ion
2 nitronium ion
3 nitrosonium ion
4 nitrogen radical
Explanation:
The attacking reagent in the nitration of benzene is nitronium ion.
