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Q. No.

In the following, the most stable conformation of n-butane is:
1. 2.
3. 4.


 

Subtopic:  Conformational Isomers |
 74%
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Decreasing order of acidic character for cyclohexanol (I), acetic acid (II), 2, 4, 6-trinitrophenol (III) and phenol (IV),  will be

1. III>II>IV>I

2. II>III>I>IV

3. II>III>IV>I

4. III>IV>II>I

Subtopic:  Acidic & Basic Character |
 53%
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Which one of the following is most reactive towards electrophilic reagent?

1.  

2.  

3.  

4.  

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
From NCERT
AIPMT - 2011

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The correct IUPAC name of the compound 

1.  3-ethyl-4-ethenylheptane

2.  3-ethyl-4-propylhex-5-ene

3.  3-(1-ethyl propyl) hex-1-ene

4.  4-ethyl-3-propylhex-1-ene

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 53%
From NCERT
AIPMT - 2011

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The correct order of increasing bond length of 
C-H, C-O, C-C and C=C is

1.  C-C<C=C<C-O<C-H

2.  C-O<C-H<C-C<C=C

3.  C-H<C-O<C-C<C=C

4.  C-H<C=C<C-O<C-C

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 61%
From NCERT
AIPMT - 2011

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Considering the state of hybridization of carbon atoms, find out the molecules among the following which is linear.

1.  CH3-C≡C-CH3

2.  CH2=CH-CH2-C≡CH

3.  CH3-CH2-CH2-CH3

4.  CH3-CH=CH-CH3

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 59%
From NCERT
AIPMT - 2011

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Which nomenclature is not according to IUPAC system?
 
1. Br-CH2-CH=CH21-bromo prop-2-ene
 
2. 
 
3. 
 
4. 

 

Subtopic:  Nomenclature |
 61%
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AIPMT - 2012

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The structure of isobutyl group in an organic compound is:
1. 
 
2. CH3–CH2–CH2–CH2–
 
3. 
 
 
4. 

 

Subtopic:  Nomenclature |
 77%
From NCERT
AIPMT - 2013

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The radical,  is aromatic because it has:
1. 7 p-orbitals and 6 unpaired electrons
2. 7 p-orbitals and 7 unpaired electrons
3. 6 p-orbitals and 7 unpaired electrons
4. 6 p-orbitals and 6 unpaired electrons

 

Subtopic:  Aromaticity & Polarity |
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The order of stability of the following tautomeric compounds is : 
1. III > II > I
2. II > I > III
3. II > III > I
4. I > II > III

 

Subtopic:  Isomers & Reaction Mechanism |
AIPMT - 2013

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