318262
Read the Statement A and Statement B carefully and mark correct option. Statement A : Tropolone is an aromatic compound and has \(8 \pi\) electrons. Statement B : \(\pi\) electrons of group in tropolone is involved in aromaticity.
1 Statement A is true but Statement B is false.
2 Statement A is false but Statement B is true.
3 Both Statement A and Statement B are false.
4 Both Statement A and Statement B are true.
Explanation:
Tropolone is an aromatic compound and has \(8 \pi\) electrons ( \(6 \pi \mathrm{e}^{-}\) are endocyclic and \(2 \pi \mathrm{e}^{-}\) are exocyclic) and \(\pi\) electrons of group are not involved in aromaticity. So correct option is (1).
JEE - 2023
CHXI13:HYDROCARBONS
318263
Assertion : Phenanthrene is an aromatic compound. Reason : Phenanthrene has benzenoid 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 Assertion is incorrect but Reason is correct.
Explanation:
Phenanthrene, is an aromatic compound as it satisfies Huckel's rule. According to Huckel's rule a compound is aromatic if it has a conjugated ring system with \(({\text{4n + 2}})\pi \) electrons, where " \({\text{n}}\) " is a whole number. Phenanthrene, has a total of \(14 \pi\) electrons within its conjugated ring system. This fulfills the \({\text{(4n + 2)}}\) rule where \({\text{n = }}\) 3 . Phenanthrene has benzene rings so it has benzoid structure. So, option (2) is correct.
CHXI13:HYDROCARBONS
318264
Select the true statement about benzene from amongst the following?
1 Because of unsaturation benzene easily undergoes addition
2 There are two types of C - C bonds in benzene molecule
3 There is cyclic delocalisation of pi-electrons in benzene
4 Monosubstitution of benzene gives three isomeric products
Explanation:
Conceptual Questions
CHXI13:HYDROCARBONS
318265
How many position isomers are possible for mono substituted naphthalene?
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI13:HYDROCARBONS
318262
Read the Statement A and Statement B carefully and mark correct option. Statement A : Tropolone is an aromatic compound and has \(8 \pi\) electrons. Statement B : \(\pi\) electrons of group in tropolone is involved in aromaticity.
1 Statement A is true but Statement B is false.
2 Statement A is false but Statement B is true.
3 Both Statement A and Statement B are false.
4 Both Statement A and Statement B are true.
Explanation:
Tropolone is an aromatic compound and has \(8 \pi\) electrons ( \(6 \pi \mathrm{e}^{-}\) are endocyclic and \(2 \pi \mathrm{e}^{-}\) are exocyclic) and \(\pi\) electrons of group are not involved in aromaticity. So correct option is (1).
JEE - 2023
CHXI13:HYDROCARBONS
318263
Assertion : Phenanthrene is an aromatic compound. Reason : Phenanthrene has benzenoid 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 Assertion is incorrect but Reason is correct.
Explanation:
Phenanthrene, is an aromatic compound as it satisfies Huckel's rule. According to Huckel's rule a compound is aromatic if it has a conjugated ring system with \(({\text{4n + 2}})\pi \) electrons, where " \({\text{n}}\) " is a whole number. Phenanthrene, has a total of \(14 \pi\) electrons within its conjugated ring system. This fulfills the \({\text{(4n + 2)}}\) rule where \({\text{n = }}\) 3 . Phenanthrene has benzene rings so it has benzoid structure. So, option (2) is correct.
CHXI13:HYDROCARBONS
318264
Select the true statement about benzene from amongst the following?
1 Because of unsaturation benzene easily undergoes addition
2 There are two types of C - C bonds in benzene molecule
3 There is cyclic delocalisation of pi-electrons in benzene
4 Monosubstitution of benzene gives three isomeric products
Explanation:
Conceptual Questions
CHXI13:HYDROCARBONS
318265
How many position isomers are possible for mono substituted naphthalene?
318262
Read the Statement A and Statement B carefully and mark correct option. Statement A : Tropolone is an aromatic compound and has \(8 \pi\) electrons. Statement B : \(\pi\) electrons of group in tropolone is involved in aromaticity.
1 Statement A is true but Statement B is false.
2 Statement A is false but Statement B is true.
3 Both Statement A and Statement B are false.
4 Both Statement A and Statement B are true.
Explanation:
Tropolone is an aromatic compound and has \(8 \pi\) electrons ( \(6 \pi \mathrm{e}^{-}\) are endocyclic and \(2 \pi \mathrm{e}^{-}\) are exocyclic) and \(\pi\) electrons of group are not involved in aromaticity. So correct option is (1).
JEE - 2023
CHXI13:HYDROCARBONS
318263
Assertion : Phenanthrene is an aromatic compound. Reason : Phenanthrene has benzenoid 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 Assertion is incorrect but Reason is correct.
Explanation:
Phenanthrene, is an aromatic compound as it satisfies Huckel's rule. According to Huckel's rule a compound is aromatic if it has a conjugated ring system with \(({\text{4n + 2}})\pi \) electrons, where " \({\text{n}}\) " is a whole number. Phenanthrene, has a total of \(14 \pi\) electrons within its conjugated ring system. This fulfills the \({\text{(4n + 2)}}\) rule where \({\text{n = }}\) 3 . Phenanthrene has benzene rings so it has benzoid structure. So, option (2) is correct.
CHXI13:HYDROCARBONS
318264
Select the true statement about benzene from amongst the following?
1 Because of unsaturation benzene easily undergoes addition
2 There are two types of C - C bonds in benzene molecule
3 There is cyclic delocalisation of pi-electrons in benzene
4 Monosubstitution of benzene gives three isomeric products
Explanation:
Conceptual Questions
CHXI13:HYDROCARBONS
318265
How many position isomers are possible for mono substituted naphthalene?
318262
Read the Statement A and Statement B carefully and mark correct option. Statement A : Tropolone is an aromatic compound and has \(8 \pi\) electrons. Statement B : \(\pi\) electrons of group in tropolone is involved in aromaticity.
1 Statement A is true but Statement B is false.
2 Statement A is false but Statement B is true.
3 Both Statement A and Statement B are false.
4 Both Statement A and Statement B are true.
Explanation:
Tropolone is an aromatic compound and has \(8 \pi\) electrons ( \(6 \pi \mathrm{e}^{-}\) are endocyclic and \(2 \pi \mathrm{e}^{-}\) are exocyclic) and \(\pi\) electrons of group are not involved in aromaticity. So correct option is (1).
JEE - 2023
CHXI13:HYDROCARBONS
318263
Assertion : Phenanthrene is an aromatic compound. Reason : Phenanthrene has benzenoid 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 Assertion is incorrect but Reason is correct.
Explanation:
Phenanthrene, is an aromatic compound as it satisfies Huckel's rule. According to Huckel's rule a compound is aromatic if it has a conjugated ring system with \(({\text{4n + 2}})\pi \) electrons, where " \({\text{n}}\) " is a whole number. Phenanthrene, has a total of \(14 \pi\) electrons within its conjugated ring system. This fulfills the \({\text{(4n + 2)}}\) rule where \({\text{n = }}\) 3 . Phenanthrene has benzene rings so it has benzoid structure. So, option (2) is correct.
CHXI13:HYDROCARBONS
318264
Select the true statement about benzene from amongst the following?
1 Because of unsaturation benzene easily undergoes addition
2 There are two types of C - C bonds in benzene molecule
3 There is cyclic delocalisation of pi-electrons in benzene
4 Monosubstitution of benzene gives three isomeric products
Explanation:
Conceptual Questions
CHXI13:HYDROCARBONS
318265
How many position isomers are possible for mono substituted naphthalene?
