NEET Test Series from KOTA - 10 Papers In MS WORD
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GENERAL ORGANIC CHEMISTRY
232282
Which of the following is not associated with electrophilic aromatic substitution in a singlept reaction?
1 The formation of bromobenzene
2 The formation of para-hydroxy nitrobenzene from para-chloronitro benzene and aq. $\mathrm{NaOH}$
3 The formation of benzenesulfonic acid
4 The formation of nitrobenzene
Explanation:
(B): Formation of bromobenzene $\rightarrow$ electrophilic aromatic substitution.
TS EAMCET 10.08.2021
GENERAL ORGANIC CHEMISTRY
232283
Identify the correct statements for a ring system to exhibit aromaticity (i) It must not be planar (ii) It must possess $(4 n+2) \pi$-electrons (iii) It must be planar (iv) It must possess $4 n \pi$-electrons The correct answer is
1 ii, iv
2 i, ii
3 i, iv
4 ii, iii
Explanation:
According to Huckle's rule the compound is to be aromatic if- (i) It is a planar. (ii) It contain $(4 n+2) \pi$ electrons
AP EAMCET-2017
GENERAL ORGANIC CHEMISTRY
232284
The non-aromatic compound among the following is
1
2
3
4
Explanation:
(B):
AP EAMCET (Engg.) 18.09.2020
GENERAL ORGANIC CHEMISTRY
232286
Cyclopentadienyl anion is
1 Benzenoid and aromatic
2 Non-benzenoid and aromatic
3 Non-benzenoid and non-aromatic
4 Non-benzenoid and anti-aromatic
Explanation:
The structure of cyclopentadienyl anion is - It is planar and cyclic with $(4 \mathrm{n}+2) \pi \mathrm{e}^{-}$system. It is aromatic but the structure is not similar to benzene.
232282
Which of the following is not associated with electrophilic aromatic substitution in a singlept reaction?
1 The formation of bromobenzene
2 The formation of para-hydroxy nitrobenzene from para-chloronitro benzene and aq. $\mathrm{NaOH}$
3 The formation of benzenesulfonic acid
4 The formation of nitrobenzene
Explanation:
(B): Formation of bromobenzene $\rightarrow$ electrophilic aromatic substitution.
TS EAMCET 10.08.2021
GENERAL ORGANIC CHEMISTRY
232283
Identify the correct statements for a ring system to exhibit aromaticity (i) It must not be planar (ii) It must possess $(4 n+2) \pi$-electrons (iii) It must be planar (iv) It must possess $4 n \pi$-electrons The correct answer is
1 ii, iv
2 i, ii
3 i, iv
4 ii, iii
Explanation:
According to Huckle's rule the compound is to be aromatic if- (i) It is a planar. (ii) It contain $(4 n+2) \pi$ electrons
AP EAMCET-2017
GENERAL ORGANIC CHEMISTRY
232284
The non-aromatic compound among the following is
1
2
3
4
Explanation:
(B):
AP EAMCET (Engg.) 18.09.2020
GENERAL ORGANIC CHEMISTRY
232286
Cyclopentadienyl anion is
1 Benzenoid and aromatic
2 Non-benzenoid and aromatic
3 Non-benzenoid and non-aromatic
4 Non-benzenoid and anti-aromatic
Explanation:
The structure of cyclopentadienyl anion is - It is planar and cyclic with $(4 \mathrm{n}+2) \pi \mathrm{e}^{-}$system. It is aromatic but the structure is not similar to benzene.
232282
Which of the following is not associated with electrophilic aromatic substitution in a singlept reaction?
1 The formation of bromobenzene
2 The formation of para-hydroxy nitrobenzene from para-chloronitro benzene and aq. $\mathrm{NaOH}$
3 The formation of benzenesulfonic acid
4 The formation of nitrobenzene
Explanation:
(B): Formation of bromobenzene $\rightarrow$ electrophilic aromatic substitution.
TS EAMCET 10.08.2021
GENERAL ORGANIC CHEMISTRY
232283
Identify the correct statements for a ring system to exhibit aromaticity (i) It must not be planar (ii) It must possess $(4 n+2) \pi$-electrons (iii) It must be planar (iv) It must possess $4 n \pi$-electrons The correct answer is
1 ii, iv
2 i, ii
3 i, iv
4 ii, iii
Explanation:
According to Huckle's rule the compound is to be aromatic if- (i) It is a planar. (ii) It contain $(4 n+2) \pi$ electrons
AP EAMCET-2017
GENERAL ORGANIC CHEMISTRY
232284
The non-aromatic compound among the following is
1
2
3
4
Explanation:
(B):
AP EAMCET (Engg.) 18.09.2020
GENERAL ORGANIC CHEMISTRY
232286
Cyclopentadienyl anion is
1 Benzenoid and aromatic
2 Non-benzenoid and aromatic
3 Non-benzenoid and non-aromatic
4 Non-benzenoid and anti-aromatic
Explanation:
The structure of cyclopentadienyl anion is - It is planar and cyclic with $(4 \mathrm{n}+2) \pi \mathrm{e}^{-}$system. It is aromatic but the structure is not similar to benzene.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
GENERAL ORGANIC CHEMISTRY
232282
Which of the following is not associated with electrophilic aromatic substitution in a singlept reaction?
1 The formation of bromobenzene
2 The formation of para-hydroxy nitrobenzene from para-chloronitro benzene and aq. $\mathrm{NaOH}$
3 The formation of benzenesulfonic acid
4 The formation of nitrobenzene
Explanation:
(B): Formation of bromobenzene $\rightarrow$ electrophilic aromatic substitution.
TS EAMCET 10.08.2021
GENERAL ORGANIC CHEMISTRY
232283
Identify the correct statements for a ring system to exhibit aromaticity (i) It must not be planar (ii) It must possess $(4 n+2) \pi$-electrons (iii) It must be planar (iv) It must possess $4 n \pi$-electrons The correct answer is
1 ii, iv
2 i, ii
3 i, iv
4 ii, iii
Explanation:
According to Huckle's rule the compound is to be aromatic if- (i) It is a planar. (ii) It contain $(4 n+2) \pi$ electrons
AP EAMCET-2017
GENERAL ORGANIC CHEMISTRY
232284
The non-aromatic compound among the following is
1
2
3
4
Explanation:
(B):
AP EAMCET (Engg.) 18.09.2020
GENERAL ORGANIC CHEMISTRY
232286
Cyclopentadienyl anion is
1 Benzenoid and aromatic
2 Non-benzenoid and aromatic
3 Non-benzenoid and non-aromatic
4 Non-benzenoid and anti-aromatic
Explanation:
The structure of cyclopentadienyl anion is - It is planar and cyclic with $(4 \mathrm{n}+2) \pi \mathrm{e}^{-}$system. It is aromatic but the structure is not similar to benzene.
