On halogenation, an alkane gives only one monohalogenated product. The alkane may be :
(1) 2-methyl butane

(2) 2, 2-dimethyl propane

(3) cyclopentane

(4) both (b) and (c)

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 68%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following compounds can be best prepared by Wurtz-reaction ?

(1) Iso-butane

(2) n-butane

(3) n-pentane

(4) Iso-pentane

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 84%
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CH3-C|H-CH2-CH3 hvCl2
              CH3

A number of chiral centers were generated during monochlorination in the above reaction:

1. 1             

2. 2             

3. 3             

4. 4

Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

CH3Cl          CH4

Above conversion can be achieved by:

1. Zn/H+

2. LiAlH4

3. Mg /(ether) then H2O

4. All of these

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 74%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Product (P) in the above-mentioned reaction is:-  

1. 2.
3. 4. Both (2) & (3)
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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(A) H2(1mole)/Pt

The double bond equivalent (degree of unsaturation) of (A) is:

1.  1                 

2. 2               

3. 3                 

4. 4

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Ethane is subjected to combustion process. During the combustion the hybrid state of carbon changes from:-

(1) sp2 to sp3

(2) sp3 to sp

(3) sp to sp3

(4) sp2 to sp2

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 84%
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The above reaction is an example of:-

1. isomerization

2. polymerization

3. cracking

4. de-hydrogenation

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 80%
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(I)  

(II)  

(II)  
Arrange the compounds I, II and III in decreasing order of their heats of combustion:-
(a) II>I>III
(b) I>II>III
(c) III>II>I
(d) III>I>II

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 62%
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(I)  

(II) 

(III)  

The correct order of reactivity of I,II and III towards addition reactions is:

(1) I>III>II                 

(2) I>II>III             

(3) III>II>I               

(4) III>I>II

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 54%
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