Which among the following compounds has minimum pH value?

1. butane

2. 2-butene

3. 1-butyne

4. 2-butyne

Subtopic:  Directive Effect of functional grp |
 59%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In the given reaction,

C6H5-CC-CH3Na/NH3(l)[X]

[X] will be 

1. 1-phenylpropane

2. 1-phenylpropene

3. trans-1-phenyl propene

4. cis-1-phenylpropene

Subtopic:  Addition Reaction of C=C |
 79%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In the given reaction,

[X] will be:

(1) 

(2) 

(3) 

(4) 

Subtopic:  Addition Reaction of C=N, C=0 |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Arrange the reactivity of given compounds in decreasing order for electrophilic addition reaction:

(i)  C6H5-CH=CH2

(ii) C6H5-C|CH3=CH-CH3

(iii) C6H5-C|C6H5=CH-CH3

(iv) H2C=CH-NO2

Select the correct answer from the codes given below:

Codes:

(1) (iv) (i) (ii) (iii)

(2) (iii) (ii) (i) (iv) 

(3) (ii) (iii) (i) (iv)

(4) (ii) (iii) (iv) (i)

Subtopic:  Reaction Intermediates |
 67%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In which compounds addition reaction will take place according to anti-Markovnikov's rule?

(i) H2C=CH-NO2

(ii) H2C=CH-CHO

(iii) H2C=CH-CN

(iv) CH3-CH=CH2

Select the correct  answer from the codes given below:

Codes:

(1) (i), (ii) and (iii)

(2) (i), (ii) and (iv)

(3) (i) and (ii)

(4) (i) and (iii) 

Subtopic:  Addition Reaction of C=C |
 64%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Consider the following statements:

(i) Alkene is more reactive than alkyne for electrophilic addition reaction.

(ii) Alkyne gives nucleophilic as well as electrophilic addition reaction.

(iii) Alkyne is more reactive than alkene for nucleophilic addition reaction.

(iv) For electrophilic addition reaction, RI of alkyne is alkyl carbonation.

Of these, correct statements are:

(1) only (i)

(2) (i) and (ii)

(3) (i), (ii) and (iv)

(4) (i), (ii) and (iii)

Subtopic:  Reaction Intermediates |
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

In the given reaction

 

N2 gasCH2N2/

The product will be:

1. 

2. 

3. Mixture of 1 and 2 

4. CH3-CH2-CH2-CH2-CH3

Subtopic:  Addition Reaction of C=C |
 66%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which compound is least reactive for nucleophilic addition reaction?

(1) C6H5CHO

(2) C6H5-C||O-CH3

(3) C6H5-C||O-C6H5

(4) CH3-C||O-CH3

Subtopic:  Addition Reaction of C=N, C=0 |
 60%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Arrange the reactivity of given carbonyl compounds in decreasing order for addition reaction:

(i) CH2Br-CHO

(ii) CH2Cl-CHO

(iii) CH2I-CHO

(iv) CH3-CHO

Select the correct answer from the codes given below:

Codes:

(1) (iv), (iii), (ii), (i)

(2) (ii), (i), (iii), (iv)

(3) (ii), (i), (iv), (iii)

(4) (i), (ii), (iii), (iv)

Subtopic:  Directive Effect of functional grp |
 65%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Arrange the reactivity of the given compounds in decreasing order for addition followed by elimination reaction:

(i) p-Cl-C6H4-CHO

(ii) p-Br-C6H4-CHO

(iii) p-F-C6H4-CHO

(iv) p-I-C6H4-CHO

Select the correct answer from the codes given below:

Codes:

(1) (i), (iii), (ii), (iv)

(2) (i), (iii), (iv), (ii)

(3) (iii), (i), (iv), (ii)

(4) (iii), (i), (ii), (iv)

Subtopic:  Directive Effect of functional grp |
 74%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints