HCl with an alkene X reacts in accordance with Markovnikov’s rule to give 1-Chloro-1-methylcyclohexane. The structure of alkene (X) is:

1. 2.
3. (1) and (2) 4.
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 77%
From NCERT
NEET - 2015
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2,3-dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?

1. CH32CH-CH|CH3-CH=CH2

2. CH33C-CH=CH2

3. CH32C=CH-CH2-CH3

4. CH32CH-CH2-CH=CH2

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
From NCERT
NEET - 2015
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The oxidation of benzene by V2O5 in the presence of air produces?

1. Benzoic anhydride

2. Maleic anhydride

3. Benzoic acid

4. Benzaldehyde

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 57%
NEET - 2015
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The reaction of C6H5CH =CHCH3 with HBr produces:

1. \(C_{6} H_{5} \underset{Br}{\underset{\left|\right.}{CH}} CH_{2} CH_{3} \)

2. \(C_{6} H_{5} CH_{2} \underset{Br}{\underset{\left|\right.}{CH}} CH_{3} \) 

3. \(C_{6} H_{5} CH_{2} CH_{2} CH_{2} Br \)

4. 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 76%
From NCERT
NEET - 2015
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Above mentioned single molecule is obtained from ozonolysis. The starting cyclic compound is:

1. 2.
3. 4.
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 75%
From NCERT
NEET - 2015
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Given compounds are as follows:
 

(I) (II)
(III)

The enthalpy of hydrogenation of these compounds will be in the order as-

1. I > II > III 2. III > II > I
3. II > III > I 4. II > I > III
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 63%
NEET - 2015
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The product(s) that are formed when the given compound is treated with Br2 in the presence of FeBr3 are:
 

1. 2. and
3.  and 
 
4. and

Subtopic:  Aromatic Hydrocarbons - Reactions & Mechanism |
 72%
From NCERT
AIPMT - 2014
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Product Z in the above-mentioned reaction is:

1. CH3-(CH2)3-O-CH2CH3

2. (CH3)2CH2-O-CH2CH3

3. CH3(CH2)4-O-CH3

4. CH3CH2-CH(CH3)-O-CH2CH3

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 74%
From NCERT
AIPMT - 2014
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Which of the following organic compounds has same hybridization as its combustion product –(CO2)?

1. Ethane

2. Ethyne

3. Ethene

4. Ethanol

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation | Alkanes, Alkenes and Alkynes - Chemical Properties |
 77%
From NCERT
AIPMT - 2014
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 A compound that cannot give Friedel-Craft’s reaction is: 

1. Xylene 2. Nitrobenzene
3. Toluene 4. Cumene
Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 74%
From NCERT
AIPMT - 2013
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