The reaction among the following that proceeds through an electrophilic substitution reaction is:

1.
2.
3.
4.

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 66%
From NCERT
NEET - 2019
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

The most suitable reagent for the following conversion is-

1.  Hg2+/ H+, H2O

2. Na/liquid NH3

3. H2, Pd/C, quinoline

4. Zn/HCl

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 78%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

An alkene "A" on reaction with O3 and Zn-H2O gives propanone and ethanal in equimolar ratio. The addition of HCl to alkene "A" gives "B" as the major product. The structure of product "B" is:

1. 2.
3. 4.
Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
 74%
From NCERT
NEET - 2019
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

The order of decreasing reactivity towards an electrophilic reagent, for the following: 
(i) Benzene (ii) Toluene 
(iii) Chlorobenzene and 
(iv) Phenol 

would be:

1. (i) > (ii) > (iii) > (iv)

2. (ii) > (iv) > (i) > (iii)

3. (iv) > (iii) > (ii) > (i)

4. (iv) > (ii) > (i) > (iii)

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 60%
From NCERT
AIPMT - 2007
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

Predict the product C obtained in the following reaction of butyne-1.
\( CH_{3}CH_{2}-C\equiv CH \ + \ HCl \)
\(\ \xrightarrow[]{} \ B \ \xrightarrow[]{HI} \ C\)

1.
2.
3.
4.
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 72%
From NCERT
AIPMT - 2007
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 hydrocarbon, 

 
The state of hybridization of carbons 1, 3, and 5 are:

1. sp2, sp, sp3

2. sp, sp3, sp2

3. sp, sp2, sp3

4. sp3, sp2, sp

Subtopic:  Alkanes, Alkenes and Alkynes - Conformations and Hybridisation |
 90%
From NCERT
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Benzene reacts with CH3Cl in the presence of anhydrous AlCl3 to form:

1. Toluene 2. Chlorobenzene
3. Benzylchloride 4. Xylene
Subtopic:  Aromatic Hydrocarbons - Reactions & Mechanism |
 86%
From NCERT
AIPMT - 2009
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4. In the mixture, nitric acid acts as a/an:

1. reducing agent 2. acid
3. base 4. catalyst
Subtopic:  Aromatic Hydrocarbons - Reactions & Mechanism |
 69%
From NCERT
AIPMT - 2009
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

The reaction of toluene with Cl2 in presence of FeCl3 gives ‘X' and the reaction in presence of light gives 'Y'. 'X' and 'Y' are respectively:

1. X= Benzal chloride, Y= o-chlorotoluene
2. X= m-chlorotoluene, Y= p-chlorotoluene
3.  X= o and p-chlorotoluene, Y= trichloromethyl
benzene
4. X= Benzyl chloride, Y= m-chlorotoluene

Subtopic:  Aromatic Hydrocarbons - Reactions & Mechanism |
 78%
From NCERT
AIPMT - 2010
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by:
1. oxidation
2. cracking
3. distillation under reduced pressure
4. hydrolysis

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 69%
From NCERT
NEET - 2010
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