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Joint Entrance Examination

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Mathematics
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Physics
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NEET

Biology
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Graduate Aptitude Test in Engineering
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Graduate Aptitude Test in Engineering

GATE CE

Strength of Materials Or Solid Mechanics
Geotechnical Engineering
Transportation Engineering
Irrigation
Engineering Mathematics
Construction Material and Management
Fluid Mechanics and Hydraulic Machines
Hydrology
Environmental Engineering
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Structural Analysis
Reinforced Cement Concrete
Steel Structures
Geomatics Engineering Or Surveying
General Aptitude

GATE ECE

Control Systems
Electronic Devices and VLSI
Digital Circuits
General Aptitude
Network Theory
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Signals and Systems
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Microprocessors
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GATE ME

Engineering Mathematics
Engineering Mechanics
Fluid Mechanics
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Production Engineering
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General Aptitude
Strength of Materials
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GATE IN

Engineering Mathematics

GATE EE

Signals and Systems
Analog Electronics
General Aptitude
Power System Analysis
Electric Circuits
Electrical Machines
Engineering Mathematics
Control Systems
Power Electronics
Electromagnetic Fields
Electrical and Electronics Measurement
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GATE CSE

Discrete Mathematics
Programming Languages
Theory of Computation
Compiler Design
Software Engineering
Web Technologies
Operating Systems
Computer Organization
Database Management System
Computer Networks
Digital Logic
Data Structures
Algorithms
General Aptitude

GATE PI

Fluid Mechanics
Metrology
Theory of Machines
Engineering Mathematics
Heat Transfer
Machine Tools and Machining
Industrial Engineering
Engineering Mechanics
Strength of Materials
Thermodynamics
Machine Design
Casting
Joining of Materials
Metal Forming
1
MCQ (Single Correct Answer)

NEET 2013 (Karnataka)

Homolytic fission of the following alkanes forms free radicals CH3 $$-$$ CH3, CH3 $$-$$ CH2 $$-$$ CH3, (CH3)2CH $$-$$ CH3, CH3 $$-$$ CH2 $$-$$CH(CH3)2.
Increasing order of stability of the radicals is
A
$$\eqalign{ & {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - \,C{H_2}C{H_3}\, < C{H_3}\, - \,\mathop C\limits^ \bullet H - \,C{H_3} \cr & < C{H_3}\, - \,\mathop C\limits^ \bullet {H_2}\, < {\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \cr} $$
B
$$\eqalign{ & C{H_3}\, - \,\mathop C\limits^ \bullet {H_2}\, < \,C{H_3}\, - \,\mathop C\limits^ \bullet HH\, - \,C{H_3}\, < \cr & {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - \,C{H_2}\, - \,C{H_3}\, < \,{\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \cr} $$
C
$$\eqalign{ & C{H_3} - \mathop C\limits^ \bullet {H_2} < C{H_3} - \mathop C\limits^ \bullet H - C{H_3} < \cr & {\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \, < {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - C{H_2}C{H_3} \cr} $$
D
$$\eqalign{ & {\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \, < {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - C{H_2}C{H_3} < \cr & C{H_3} - \mathop C\limits^ \bullet H - C{H_3} < C{H_3} - \mathop C\limits^ \bullet {H_2} \cr} $$

Explanation

Stability depends on number of hyperconjugative structure. More the number of hyperconjugative structure, the greater is the stability.
2
MCQ (Single Correct Answer)

NEET 2013 (Karnataka)

Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to which of the following formulae?
A
Fe3[Fe(CN)6]2
B
Fe4[Fe(CN)6]3
C
Fe4[Fe(CN)6]2
D
Fe3[Fe(CN)6]3

Explanation

The prussian blue colour is of Fe4 [Fe(CN)6]3 ferric ferrocyanide.
3
MCQ (Single Correct Answer)

NEET 2013 (Karnataka)

What is the hybridisation state of benzyl carbonium ion?

A
sp2
B
spd2
C
sp2d
D
sp3
4
MCQ (Single Correct Answer)

NEET 2013 (Karnataka)

Arrange the following in increasing order of stability
A
5 < 4 < 3 < 1< 2
B
4 < 5 < 3 < 1 < 2
C
1 < 5 < 4 < 3 < 2
D
5 < 4 < 3 < 2 < 1

Explanation

Greater the number of e– donating alkyl groups (+I effect), greater will be the stability of carbocations.

Questions Asked from Some Basic Concepts of Organic Chemistry

On those following papers in MCQ (Single Correct Answer)
Number in Brackets after Paper Name Indicates No of Questions
NEET 2020 Phase 1 (2)
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NEET 2019 (2)
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NEET 2018 (2)
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NEET 2017 (3)
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NEET 2016 Phase 2 (1)
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NEET 2016 Phase 1 (1)
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AIPMT 2015 (2)
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AIPMT 2015 Cancelled Paper (8)
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AIPMT 2014 (1)
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NEET 2013 (Karnataka) (4)
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NEET 2013 (4)
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AIPMT 2012 Prelims (1)
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AIPMT 2011 Mains (2)
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AIPMT 2011 Prelims (5)
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AIPMT 2010 Mains (2)
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AIPMT 2010 Prelims (1)
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AIPMT 2009 (1)
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AIPMT 2008 (3)
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AIPMT 2007 (2)
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AIPMT 2006 (2)
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AIPMT 2005 (6)
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AIPMT 2004 (2)
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AIPMT 2003 (2)
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AIPMT 2002 (2)
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AIPMT 2001 (3)
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Chapters Map

Physical Chemistry

Gaseous State
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Solid State
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Surface Chemistry
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Nuclear Chemistry
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Some Basic Concepts of Chemistry
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Thermodynamics
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Solutions
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Electrochemistry
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Chemical Kinetics
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Structure of Atom
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Equilibrium
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Redox Reactions
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Organic Chemistry

Alcohol, Phenols and Ethers
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Biomolecules
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Chemistry in Everyday Life
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Hydrocarbons
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Organic Compounds Containing Nitrogen
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Polymers
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Some Basic Concepts of Organic Chemistry
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Haloalkanes and Haloarenes
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Aldehydes, Ketones and Carboxylic Acids
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Inorganic Chemistry

s-Block Elements
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p-Block Elements
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Coordination Compounds
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Periodic Table and Periodicity
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Processes of Isolation of Elements
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d and f Block Elements
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Environmental Chemistry
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Chemical Bonding and Molecular Structure
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Hydrogen
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EXAM MAP

Joint Entrance Examination

JEE Advanced JEE Main

Medical

NEET

Graduate Aptitude Test in Engineering

GATE CE GATE ECE GATE ME GATE IN GATE EE GATE CSE GATE PI