The state of hybridisation of C2, C3, C5 and C6of the hydrocarbon, 
 
is in the following sequence : 

1. sp,sp3,sp2 and sp3

2. sp3,sp2,sp2 and sp

3. sp,sp2,sp2 and sp3

4. sp,sp2,sp3 and sp2

Subtopic:  Hybridisation |
 82%
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AIPMT - 2009

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Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by

1. Oxidation

2. Cracking

3. Distillation under reduced pressure

4. Hydrolysis

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 64%
NEET - 2010

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Which of the following compounds will not undergo Friedal-Craft’s reaction easily:

1. Xylene
2. Nitrobenzene
3. Toluene
4. Cumene

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 73%
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AIPMT - 2013

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Which of the following organic compounds has the same hybridization as its combustion product i.e (CO2) :

1. Ethane

2. Ethyne

3. Ethene

4. Ethanol

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation | Alkanes, Alkenes and Alkynes - Chemical Properties |
 72%
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AIPMT - 2014

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Identify Z in the sequence of reactions: 
CH3CH2CH=CH2H2O2HBrYC2H5ONaZ

1. CH3-(CH2)3-O-CH2CH3

2. (CH3)2CH2-O-CH2CH3

3. CH3(CH2)4-O-CH3

4. CH3CH2-CH(CH3)-O-CH2CH3

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 70%
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AIPMT - 2014

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The reaction of C6H5CH=CHCH3 with HBr produces, 
1. C6H5CH|BrCH2CH3
2. C6H5CH2CH|BrCH3
3. C6H5CH2CH2CH2Br
4.
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 84%
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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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In the reaction with HCl, an alkene reacts in accordance with  Markovnikov's rule, to give a product 1-chloro-1-methylcyclohexane. The possible alkene is:
1.  2. 
3.  (1) and (2) 4. 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 70%
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NEET - 2015

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Consider the nitration of benzene using mixed conc. H2SO4 and HNO3. If a large amount of KHSO4 is added to the mixture, the rate of nitration will be
1. slower
2. unchanged
3. doubled
4. faster

 

Subtopic:  Common Ion Effect |
 57%
NEET - 2016

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In the reaction, 
H-CCH ii CH3CH2Bri NaNH2/liq.NH3 X ii CH3CH2Bri NaNH2/liq.NH3Y
X and Y are:
1. X = 2 –Butyne; Y = 3 –Hexyne
2. X = 2 – Butyne; Y = 2-Hexyne
3. X = 1-Butyne; Y = 2-Hexyne
4. X = 1 – Butyne; Y = 3 – Hexyne
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 54%
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NEET - 2016

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