Chlorination of methane takes place by:

1. Elimination

2. SN1

3. Free radical

4. SN2

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 83%
From NCERT
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The products formed after ozonolysis of Pent-2-ene are:

1. Ethanal and Methanal

2. Ethanal and Propanal

3. Ethanal and Butanal

4. Ethanal and  Ethanal

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 90%
From NCERT
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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

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 60%
From NCERT
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Incorrect statement regarding aromaticity among the following is:

1. The 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) π electrons, where n = 0, 1, 2 … etc. This is known as Huckel’s rule. 
4.  The compound should have a linear structure.

Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule |
 88%
From NCERT
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Non aromatic molecule(s)among the following is/are :

1. 2.
3. 4. All of the above
Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule |
 75%
From NCERT
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The catalyst used in the conversion of benzene into acetophenone is:

1. Anhydrous AlCl3

2. HNO3

3. HCl

4. Heating

Subtopic:  Aromatic Hydrocarbons - Reactions & Mechanism |
 87%
From NCERT
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The effect of branching on an alkane is:
1. It increases its boiling point
2. It decreases its boiling point
3. It doesn’t change its boiling point
4. None of the above

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 85%
From NCERT
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The 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

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 83%
From NCERT
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Decreasing 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

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 84%
From NCERT
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Incorrect 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.

Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule |
 67%
From NCERT
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