In the following reaction,

\( CH_{3}C\equiv CH\xrightarrow[Red \ hot \ iron \ tube]{873 K} \ A\)

The number of (σ) bonds present in the product (A) is:

1. 21 

2. 9

3. 24

4. 18

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
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Which of the following statements is true for the reaction given below?

1.  P is a meso compound 2,3-butanedi 01 formed by syn addition

2.  P is a meso compound formed by anti addition

3.  P is a racemic mixture of d- and l- 2,3" butanediol formed by anti addition

4.  P is a racemic mixture of d- and l- 2,3- butanediol formed by Syn addition

 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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1,2-dibromopropane on treatment with X moles of NaNH2 followed by treatment with ethyl bromine gave a pent-2-yne. The value of X is -

1.  1

2.  2

3.  3

4.  4

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
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+HNO3Conc.A Nitro compound

The compound A is-

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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The alkane that gives only one monochloro product on chlorination with Cl2 in presence of diffused sunlight is-

1. 2,2,-dimethylbutane 2. neopentane
3. n-pentane 4. Isopentane
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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The product P obtained through the following sequence of reaction is

conc. H2SO4,warmconc. HNO3LheatBr2,FeMSn/HClNiiCu2Cl2iNaNO2,HClP

1. 3-chloroaniline

2. 4-bromochlorobenzene

3. 3-bromochlorobenene

4. 3-bromobenzene

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 65%
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Compound 'X' in the following reaction is

1.   

2.  

3.  

4.  

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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In the following reaction

OH-/ozonolysisX

The major product X is

1.            2.  

3.          4.  

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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The major product in the above-mentioned reaction is:

1.
2.
3.
4.
Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
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Compound A is:

1. 2.
3. 4.

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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