Organic Chemistry deals with the structure, properties, reactions, and synthesis of carbon-containing compounds, forming a core part of school-level chemistry, undergraduate curricula, and competitive examinations. This category is designed for Class 11–12 students, undergraduate learners, and competitive exam aspirants, with strong emphasis on conceptual clarity, reaction mechanisms, and application-based learning.
In this section, you will study:
Basic principles of organic chemistry – hybridization, bonding, and structure
Classification and nomenclature of organic compounds
Isomerism – structural and stereoisomerism
Reaction mechanisms – substitution, addition, elimination, and rearrangement
Hydrocarbons – alkanes, alkenes, alkynes, and aromatic compounds
Functional groups and their chemistry – alcohols, aldehydes, ketones, acids, amines, etc.
Named reactions and reagents essential for exams
Biomolecules and polymers (introductory to UG level)
Spectroscopic methods for structure determination (introductory)
NCERT- and UG-aligned explanations, supported by reaction schemes, mechanisms, examples, MCQs, and PYQs
The content is structured to build step-by-step understanding, enhance mechanistic thinking, and help students predict reaction outcomes and solve complex problems.
Master Organic Chemistry to develop strong analytical and reasoning skills, essential for school exams, undergraduate studies, and competitive examinations.
Q. Which of the following statements about thermoplastics is true?
A.
They can be reshaped upon heating
B.
They are chemically cross-linked
C.
They have a fixed shape
D.
They are always biodegradable
Solution
Thermoplastics can be reshaped upon heating, allowing them to be molded into various forms, unlike thermosetting plastics which cannot be reshaped once set.
Correct Answer:
A
— They can be reshaped upon heating
Q. Which of the following statements is true regarding nucleophilic substitution reactions?
A.
SN1 reactions are favored by tertiary substrates
B.
SN2 reactions are favored by tertiary substrates
C.
SN1 reactions require a strong nucleophile
D.
SN2 reactions occur in two steps
Solution
SN1 reactions are favored by tertiary substrates due to the stability of the carbocation formed, while SN2 reactions are favored by primary substrates.
Correct Answer:
A
— SN1 reactions are favored by tertiary substrates
Q. Which of the following statements is true regarding Werner's theory?
A.
It only applies to transition metals
B.
It does not consider the geometry of complexes
C.
It explains the formation of coordination compounds
D.
It is outdated and not used in modern chemistry
Solution
Werner's theory is significant as it explains the formation and structure of coordination compounds, making it a foundational concept in coordination chemistry.
Correct Answer:
C
— It explains the formation of coordination compounds
Q. Which of the following surfaces would likely have the highest adsorption capacity?
A.
Smooth metal surface
B.
Rough metal surface
C.
Glass surface
D.
Plastic surface
Solution
A rough metal surface has a larger surface area and more active sites for adsorption compared to smooth surfaces, leading to higher adsorption capacity.
Q. Which position on a disubstituted benzene ring will a new substituent most likely attach if one substituent is a strong electron-donating group and the other is a weak electron-withdrawing group?
A.
Ortho
B.
Meta
C.
Para
D.
None
Solution
The new substituent will most likely attach at the ortho position due to the activating effect of the electron-donating group.
Q. Which reaction mechanism is involved in the conversion of an alcohol to an alkyl halide?
A.
SN1
B.
SN2
C.
E1
D.
E2
Solution
The conversion of an alcohol to an alkyl halide typically involves an SN2 mechanism, where the nucleophile attacks the carbon atom while the leaving group departs.