Among the two isomers given above, the reason behind higher boiling point of one isomer as compared to the order is :
1. Cis - less polar than trans
2. Trans - more polar than cis
3. Cis - more intermolecular forces
4. Trans - more dipole-dipole interactions
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
Incorrect statement regarding aromaticity is-
1. Compound should have a planar structure.
2. The π–electrons of the compound are completely delocalized in the ring.
3. The total number of π–electrons present in the ring should be equal to (4n + 2) , where n = 0, 1, 2 … etc. This is known as Huckel’s rule.
4. Compound should have a linear structure
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNot an aromatic molecule is/are -
1.
2.
3.
4. All of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe catalyst used in the conversion of benzene into acetophenone is done -
1) Anhydrous AlCl3
2) HNO3
3) HCl
4) Heating
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe effect of branching on an alkane
1. Increases its boiling point
2. Decreases its boiling point
3. Doesn’t change its boiling point
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe product obtained on the addition of HBr to propene in the absence and presence of benzoyl peroxide are respectively
1. 1-Bromopropane, 2-Bromopropane
2. 2-Bromopropane, 1-Bromopropane
3. 1-Bromopropanol, 2-Bromopropanone
4. 2-Bromopropanone, 1-Bromopropanol
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDecreasing order of acidic behavior of benzene, n-hexane, and ethyne is -
1. Hexane > Ethyne > Benzene
2. Benzene > Hexane > Ethyne
3. Ethyne > Benzene > Hexane
4. Benzene > Ethyne > Hexene
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIncorrect statement towards reactivity of benzene is
1. It undergoes electrophilic substitution reactions very easily
2. Nucleophiles are attracted by a benzene ring
3. Benzene is a planar molecule
4. It has 12 sigma bonds
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
The reagent used in the above conversion is -
1. Cr2O3
2. Alc. KOH
3. Red hot Fe
4. NaNH2/liq.NH3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
Out of the above alkenes, the ones that can give 2-methyl butane on hydrogenation are-
1. a, b
2. b, c
3. a, c
4. a, b, c
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology