In the given selective hydrogenation which combination is incorrect ?

1. (w.c. = wilkinsons catalyst)

2.  (w.c. = wilkinsons catalyst)

3. 

4. H2CH2-CH=CH-CH3

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
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NEET 2023 - Target Batch - Aryan Raj Singh
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ANa/NH3lBMCBPAC

Compound (C) in above sequence of reaction is:

1.    

2. 

3.  

4. 

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation | Alkanes, Alkenes and Alkynes - Chemical Properties |
 61%
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R2O2/hvHBr(A);   

 

Major product (A) is:

(a) 

(b) 

(c) 

(d) 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 70%
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In the reaction given below, the product would be:-

CH3-CH=CH-CH3 H3O+ CH3-CH2-C |
OHH-CH3

1. a mixture of diastereomers  
2. optically active
3. optically pure enantiomer

4. a racemic mixture

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 50%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

 H+Possible products Br2/CCl4(y) products

The number of possible products for x and y is:

(a) 2,4

(b) 3,5

(c) 3,6

(d) 3,4

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
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Liq. NH3Na AZnO3BPh3P=CH22moleC

Product (C) of the above reaction is :

(a) 1,3-Hexadiene
(b) 1,4-Pentadiene
(c) 1,3-Butadiene
(d) 1,3-Heptadiene

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 53%
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To achieve above conversion, the reagents used will be:

(a) O3/H2O2, HO-/                               

(b) HBr, alc. KOH, O3, LiAlH4, H+/

(c)  HBr, t-BuOK, O3, KMnO4

(d)  HBr, alc. KOH, O3, KMnO4

 

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
 63%
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0°CPCl5A70-80%(2) H(1) 3NaNH2, mineral oilB46%; Product (B) is:

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation | Alkanes, Alkenes and Alkynes - Chemical Properties |
 64%
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Product (K) of the above reaction is:

1. 

2. 
3. 

4. 

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
 59%
From NCERT
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CH3-CH2-CH2-CCH+LiHN2(A)(CH3)2SO4(B)

Give the structural formula of compound (B):

(a) CH3-(CH2)2-CC-SO3H

(b) CH3-(CH2)2-CC-CH3

(c)  CH3-(CH2)2-CC-CH2-O-OsO-H

(d) CH3-CH2-CC-CH2

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
 51%
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