Q. What type of isotherm is represented by the Freundlich equation?
A.
Langmuir isotherm
B.
BET isotherm
C.
Freundlich isotherm
D.
Temkin isotherm
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Solution
The Freundlich equation describes a type of adsorption isotherm that is applicable to heterogeneous surfaces.
Correct Answer:
C
— Freundlich isotherm
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Q. What type of mechanism does the reaction of 2-bromopropane with a strong nucleophile follow?
A.
SN1
B.
SN2
C.
E1
D.
E2
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Solution
The reaction of 2-bromopropane with a strong nucleophile typically follows the SN2 mechanism due to steric hindrance.
Correct Answer:
B
— SN2
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Q. What type of polymer is formed by the polymerization of unsaturated monomers?
A.
Addition polymer
B.
Condensation polymer
C.
Natural polymer
D.
Biopolymer
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Solution
Addition polymers are formed by the polymerization of unsaturated monomers.
Correct Answer:
A
— Addition polymer
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Q. What type of polymer is formed from the polymerization of isoprene?
A.
Natural rubber
B.
Nylon
C.
Polyethylene
D.
Polystyrene
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Solution
Natural rubber is formed from the polymerization of isoprene.
Correct Answer:
A
— Natural rubber
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Q. What type of polymer is formed when amino acids link together?
A.
Polysaccharides
B.
Proteins
C.
Nucleic acids
D.
Lipids
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Solution
Proteins are polymers formed by the linkage of amino acids through peptide bonds.
Correct Answer:
B
— Proteins
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Q. What type of polymerization involves the formation of a polymer by the reaction of monomers with unsaturated bonds?
A.
Addition polymerization
B.
Condensation polymerization
C.
Chain-growth polymerization
D.
Step-growth polymerization
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Solution
Addition polymerization involves the reaction of monomers with unsaturated bonds to form a polymer.
Correct Answer:
A
— Addition polymerization
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Q. What type of polymerization involves the formation of a polymer by the reaction of monomers with functional groups?
A.
Addition polymerization
B.
Condensation polymerization
C.
Chain-growth polymerization
D.
Step-growth polymerization
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Solution
Condensation polymerization involves the reaction of monomers with functional groups, resulting in the elimination of small molecules.
Correct Answer:
B
— Condensation polymerization
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Q. What type of polymerization involves the formation of a polymer from monomers with the elimination of a small molecule?
A.
Addition polymerization
B.
Condensation polymerization
C.
Chain-growth polymerization
D.
Step-growth polymerization
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Solution
Condensation polymerization involves the elimination of a small molecule, such as water.
Correct Answer:
B
— Condensation polymerization
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Q. What type of protein is hemoglobin?
A.
Enzyme
B.
Structural protein
C.
Transport protein
D.
Hormonal protein
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Solution
Hemoglobin is a transport protein that carries oxygen in the blood.
Correct Answer:
C
— Transport protein
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Q. What type of protein structure involves multiple polypeptide chains?
A.
Primary structure
B.
Secondary structure
C.
Tertiary structure
D.
Quaternary structure
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Solution
The quaternary structure of a protein is formed when two or more polypeptide chains assemble into a functional protein complex.
Correct Answer:
D
— Quaternary structure
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Q. What type of reaction do alkanes typically undergo?
A.
Addition
B.
Substitution
C.
Elimination
D.
Hydrolysis
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Solution
Alkanes typically undergo substitution reactions, especially with halogens.
Correct Answer:
B
— Substitution
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Q. What type of reaction do alkenes typically undergo?
A.
Substitution
B.
Addition
C.
Elimination
D.
Redox
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Solution
Alkenes typically undergo addition reactions due to the presence of double bonds.
Correct Answer:
B
— Addition
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Q. What type of reaction forms a peptide bond?
A.
Hydrolysis
B.
Condensation
C.
Oxidation
D.
Reduction
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Solution
A peptide bond is formed through a condensation reaction, where water is released.
Correct Answer:
B
— Condensation
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Q. What type of reaction forms peptide bonds between amino acids?
A.
Hydrolysis
B.
Condensation
C.
Redox
D.
Substitution
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Solution
Peptide bonds are formed through a condensation reaction, where a molecule of water is released.
Correct Answer:
B
— Condensation
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Q. What type of reaction forms peptide bonds?
A.
Hydrolysis
B.
Condensation
C.
Oxidation
D.
Reduction
Show solution
Solution
Peptide bonds are formed through a condensation reaction between amino acids.
Correct Answer:
B
— Condensation
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Q. What type of reaction forms polymers from monomers?
A.
Hydrolysis
B.
Dehydration synthesis
C.
Redox reaction
D.
Condensation reaction
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Solution
Dehydration synthesis is the reaction that links monomers together to form polymers by removing water.
Correct Answer:
B
— Dehydration synthesis
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Q. What type of reaction occurs when 1-bromopropane reacts with potassium cyanide?
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
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Solution
The reaction is a nucleophilic substitution where the cyanide ion replaces the bromine atom.
Correct Answer:
B
— Substitution
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Q. What type of reaction occurs when 2-bromobutane is treated with sodium ethoxide?
A.
Nucleophilic substitution
B.
Elimination
C.
Addition
D.
Redox
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Solution
The treatment of 2-bromobutane with sodium ethoxide leads to an elimination reaction, forming an alkene.
Correct Answer:
B
— Elimination
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Q. What type of reaction occurs when alkenes are converted to alkanes?
A.
Addition
B.
Substitution
C.
Elimination
D.
Oxidation
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Solution
The conversion of alkenes to alkanes involves the addition of hydrogen (hydrogenation).
Correct Answer:
A
— Addition
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Q. What type of reaction occurs when alkenes react with hydrogen?
A.
Hydrolysis
B.
Hydrogenation
C.
Dehydrogenation
D.
Oxidation
Show solution
Solution
The reaction of alkenes with hydrogen is called hydrogenation.
Correct Answer:
B
— Hydrogenation
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Q. What type of reaction occurs when alkenes undergo hydrogenation?
A.
Addition
B.
Substitution
C.
Elimination
D.
Oxidation
Show solution
Solution
Hydrogenation is an addition reaction where hydrogen is added across the double bond.
Correct Answer:
A
— Addition
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Q. What type of reaction occurs when an alcohol reacts with an acid to form an ether?
A.
Esterification
B.
Dehydration
C.
Condensation
D.
Hydrolysis
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Solution
The reaction between an alcohol and an acid to form an ether is a condensation reaction.
Correct Answer:
C
— Condensation
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Q. What type of reaction occurs when an alkene reacts with hydrogen in the presence of a catalyst?
A.
Hydration
B.
Hydrogenation
C.
Halogenation
D.
Oxidation
Show solution
Solution
The reaction of an alkene with hydrogen in the presence of a catalyst is called hydrogenation.
Correct Answer:
B
— Hydrogenation
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Q. What type of reaction occurs when an alkene reacts with hydrogen?
A.
Hydration
B.
Hydrogenation
C.
Dehydrogenation
D.
Halogenation
Show solution
Solution
Hydrogenation is the addition of hydrogen to an alkene, converting it to an alkane.
Correct Answer:
B
— Hydrogenation
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Q. What type of reaction occurs when an alkene reacts with water in the presence of an acid?
A.
Hydrolysis
B.
Dehydration
C.
Hydrogenation
D.
Halogenation
Show solution
Solution
The reaction of an alkene with water in the presence of an acid is called hydrolysis.
Correct Answer:
A
— Hydrolysis
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Q. What type of reaction occurs when an amine is treated with a haloalkane?
A.
Nucleophilic substitution
B.
Electrophilic addition
C.
Elimination
D.
Oxidation
Show solution
Solution
The reaction between an amine and a haloalkane is a nucleophilic substitution reaction.
Correct Answer:
A
— Nucleophilic substitution
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Q. What type of reaction occurs when an amine reacts with a nitrous acid?
A.
Substitution
B.
Elimination
C.
Decomposition
D.
Diazotization
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Solution
The reaction of an amine with nitrous acid leads to diazotization, forming a diazonium salt.
Correct Answer:
D
— Diazotization
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Q. What type of reaction occurs when chlorobenzene is treated with sodium hydroxide at high temperature?
A.
Nucleophilic substitution
B.
Electrophilic substitution
C.
Elimination
D.
Addition
Show solution
Solution
Chlorobenzene undergoes nucleophilic substitution to form phenol when treated with sodium hydroxide at high temperature.
Correct Answer:
A
— Nucleophilic substitution
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Q. What type of reaction occurs when haloalkanes react with alcoholic KOH?
A.
Nucleophilic substitution
B.
Elimination
C.
Addition
D.
Redox
Show solution
Solution
Haloalkanes react with alcoholic KOH primarily through nucleophilic substitution to form alcohols.
Correct Answer:
B
— Elimination
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Q. What type of reaction occurs when phenol is treated with sodium hydroxide?
A.
Neutralization
B.
Esterification
C.
Saponification
D.
Nucleophilic substitution
Show solution
Solution
Phenol reacts with sodium hydroxide in a nucleophilic substitution reaction to form phenoxide ion.
Correct Answer:
D
— Nucleophilic substitution
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Chemistry Syllabus (JEE Main) MCQ & Objective Questions
The Chemistry Syllabus for JEE Main is crucial for students aiming to excel in their exams. Understanding this syllabus not only helps in grasping fundamental concepts but also enhances performance in objective questions and MCQs. Regular practice with these types of questions is essential for scoring better and mastering important topics.
What You Will Practise Here
Basic Concepts of Chemistry
Atomic Structure and Chemical Bonding
States of Matter: Gases and Liquids
Thermodynamics and Thermochemistry
Equilibrium: Chemical and Ionic
Redox Reactions and Electrochemistry
Hydrocarbons and Environmental Chemistry
Exam Relevance
The Chemistry syllabus is a significant part of CBSE, State Boards, NEET, and JEE exams. Questions from this syllabus often appear in various formats, including multiple-choice questions, assertion-reason type questions, and numerical problems. Familiarity with the common question patterns can greatly enhance your exam preparation and confidence.
Common Mistakes Students Make
Misunderstanding the periodic trends and their implications.
Confusing different types of chemical bonds and their properties.
Neglecting to balance redox reactions properly.
Overlooking the significance of units in thermodynamic calculations.
Failing to apply concepts of equilibrium in problem-solving.
FAQs
Question: What are the key topics I should focus on in the Chemistry syllabus for JEE Main?Answer: Focus on atomic structure, chemical bonding, thermodynamics, and equilibrium as they are frequently tested.
Question: How can I improve my performance in Chemistry MCQs?Answer: Regular practice with past papers and understanding concepts deeply will help you tackle MCQs effectively.
Start your journey towards mastering the Chemistry Syllabus (JEE Main) by solving practice MCQs today. Test your understanding and build confidence for your exams!