Compound 1 is non-aromatic as it contains \({\mathrm{\mathrm{sp}^{3}}}\) hybridised carbon centre which makes it non-planar and compound 3 is nonaromatic due to severe non-bonded interactions between the internal hydrogen atoms. Due to these interactions ring acquires non-planar geometry. So, the correct option is (2).
JEE Main - 2024
CHXI13:HYDROCARBONS
318214
Among the following: The set which represents aromatic species is
1 II and III
2 I, II and IV
3 I, II and III
4 III, IV and V
Explanation:
I, II, IV obey Huckel's rule and have conjugation.
KCET - 2023
CHXI13:HYDROCARBONS
318220
Consider the following compounds/species: The number of compounds/species which obey Huckel's rule is
318221
An aromatic compound contains ____ \(\pi\)-electrons
1 \(4 \mathrm{n}\)
2 \({\text{4 n + 1}}\)
3 \({\text{4 n + 2}}\)
4 \({\text{4 n + 3}}\)
Explanation:
An aromatic compound contains \({\text{(4n + 2)}}\,\,\pi \) electrons. It is according to Huckel's rule, which represents the aromaticity of the molecules. Aromatic compounds possess a sweet smell which is characteristic and different from other fragments. The term aromatic compounds is now used for benzene and the compounds structurally related to benzene, even if they do not possess a sweet smell.
CHXI13:HYDROCARBONS
318222
Assertion : Tropylium cation is aromatic in nature. Reason : The only property that determines its aromatic behaviour is planar structure.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
is aromatic, because it contains \((4 n+2) \pi\) electrons and planar structure are essential conditions for aromaticity. Thus, Assertion is correct but Reason is incorrect.
Compound 1 is non-aromatic as it contains \({\mathrm{\mathrm{sp}^{3}}}\) hybridised carbon centre which makes it non-planar and compound 3 is nonaromatic due to severe non-bonded interactions between the internal hydrogen atoms. Due to these interactions ring acquires non-planar geometry. So, the correct option is (2).
JEE Main - 2024
CHXI13:HYDROCARBONS
318214
Among the following: The set which represents aromatic species is
1 II and III
2 I, II and IV
3 I, II and III
4 III, IV and V
Explanation:
I, II, IV obey Huckel's rule and have conjugation.
KCET - 2023
CHXI13:HYDROCARBONS
318220
Consider the following compounds/species: The number of compounds/species which obey Huckel's rule is
318221
An aromatic compound contains ____ \(\pi\)-electrons
1 \(4 \mathrm{n}\)
2 \({\text{4 n + 1}}\)
3 \({\text{4 n + 2}}\)
4 \({\text{4 n + 3}}\)
Explanation:
An aromatic compound contains \({\text{(4n + 2)}}\,\,\pi \) electrons. It is according to Huckel's rule, which represents the aromaticity of the molecules. Aromatic compounds possess a sweet smell which is characteristic and different from other fragments. The term aromatic compounds is now used for benzene and the compounds structurally related to benzene, even if they do not possess a sweet smell.
CHXI13:HYDROCARBONS
318222
Assertion : Tropylium cation is aromatic in nature. Reason : The only property that determines its aromatic behaviour is planar structure.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
is aromatic, because it contains \((4 n+2) \pi\) electrons and planar structure are essential conditions for aromaticity. Thus, Assertion is correct but Reason is incorrect.
Compound 1 is non-aromatic as it contains \({\mathrm{\mathrm{sp}^{3}}}\) hybridised carbon centre which makes it non-planar and compound 3 is nonaromatic due to severe non-bonded interactions between the internal hydrogen atoms. Due to these interactions ring acquires non-planar geometry. So, the correct option is (2).
JEE Main - 2024
CHXI13:HYDROCARBONS
318214
Among the following: The set which represents aromatic species is
1 II and III
2 I, II and IV
3 I, II and III
4 III, IV and V
Explanation:
I, II, IV obey Huckel's rule and have conjugation.
KCET - 2023
CHXI13:HYDROCARBONS
318220
Consider the following compounds/species: The number of compounds/species which obey Huckel's rule is
318221
An aromatic compound contains ____ \(\pi\)-electrons
1 \(4 \mathrm{n}\)
2 \({\text{4 n + 1}}\)
3 \({\text{4 n + 2}}\)
4 \({\text{4 n + 3}}\)
Explanation:
An aromatic compound contains \({\text{(4n + 2)}}\,\,\pi \) electrons. It is according to Huckel's rule, which represents the aromaticity of the molecules. Aromatic compounds possess a sweet smell which is characteristic and different from other fragments. The term aromatic compounds is now used for benzene and the compounds structurally related to benzene, even if they do not possess a sweet smell.
CHXI13:HYDROCARBONS
318222
Assertion : Tropylium cation is aromatic in nature. Reason : The only property that determines its aromatic behaviour is planar structure.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
is aromatic, because it contains \((4 n+2) \pi\) electrons and planar structure are essential conditions for aromaticity. Thus, Assertion is correct but Reason is incorrect.
Compound 1 is non-aromatic as it contains \({\mathrm{\mathrm{sp}^{3}}}\) hybridised carbon centre which makes it non-planar and compound 3 is nonaromatic due to severe non-bonded interactions between the internal hydrogen atoms. Due to these interactions ring acquires non-planar geometry. So, the correct option is (2).
JEE Main - 2024
CHXI13:HYDROCARBONS
318214
Among the following: The set which represents aromatic species is
1 II and III
2 I, II and IV
3 I, II and III
4 III, IV and V
Explanation:
I, II, IV obey Huckel's rule and have conjugation.
KCET - 2023
CHXI13:HYDROCARBONS
318220
Consider the following compounds/species: The number of compounds/species which obey Huckel's rule is
318221
An aromatic compound contains ____ \(\pi\)-electrons
1 \(4 \mathrm{n}\)
2 \({\text{4 n + 1}}\)
3 \({\text{4 n + 2}}\)
4 \({\text{4 n + 3}}\)
Explanation:
An aromatic compound contains \({\text{(4n + 2)}}\,\,\pi \) electrons. It is according to Huckel's rule, which represents the aromaticity of the molecules. Aromatic compounds possess a sweet smell which is characteristic and different from other fragments. The term aromatic compounds is now used for benzene and the compounds structurally related to benzene, even if they do not possess a sweet smell.
CHXI13:HYDROCARBONS
318222
Assertion : Tropylium cation is aromatic in nature. Reason : The only property that determines its aromatic behaviour is planar structure.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
is aromatic, because it contains \((4 n+2) \pi\) electrons and planar structure are essential conditions for aromaticity. Thus, Assertion is correct but Reason is incorrect.
Compound 1 is non-aromatic as it contains \({\mathrm{\mathrm{sp}^{3}}}\) hybridised carbon centre which makes it non-planar and compound 3 is nonaromatic due to severe non-bonded interactions between the internal hydrogen atoms. Due to these interactions ring acquires non-planar geometry. So, the correct option is (2).
JEE Main - 2024
CHXI13:HYDROCARBONS
318214
Among the following: The set which represents aromatic species is
1 II and III
2 I, II and IV
3 I, II and III
4 III, IV and V
Explanation:
I, II, IV obey Huckel's rule and have conjugation.
KCET - 2023
CHXI13:HYDROCARBONS
318220
Consider the following compounds/species: The number of compounds/species which obey Huckel's rule is
318221
An aromatic compound contains ____ \(\pi\)-electrons
1 \(4 \mathrm{n}\)
2 \({\text{4 n + 1}}\)
3 \({\text{4 n + 2}}\)
4 \({\text{4 n + 3}}\)
Explanation:
An aromatic compound contains \({\text{(4n + 2)}}\,\,\pi \) electrons. It is according to Huckel's rule, which represents the aromaticity of the molecules. Aromatic compounds possess a sweet smell which is characteristic and different from other fragments. The term aromatic compounds is now used for benzene and the compounds structurally related to benzene, even if they do not possess a sweet smell.
CHXI13:HYDROCARBONS
318222
Assertion : Tropylium cation is aromatic in nature. Reason : The only property that determines its aromatic behaviour is planar structure.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
is aromatic, because it contains \((4 n+2) \pi\) electrons and planar structure are essential conditions for aromaticity. Thus, Assertion is correct but Reason is incorrect.
