Chemistry Syllabus (JEE Main)
Q. What type of isomerism is shown by [Cr(NH3)5Cl]SO4?
-
A.
Geometrical
-
B.
Optical
-
C.
Linkage
-
D.
Coordination
Solution
Coordination isomerism occurs when the composition of the coordination sphere differs, as seen in this complex.
Correct Answer: D — Coordination
Learn More →
Q. What type of isotherm is represented by the Freundlich equation?
-
A.
Langmuir isotherm
-
B.
BET isotherm
-
C.
Freundlich isotherm
-
D.
Temkin isotherm
Solution
The Freundlich equation describes a type of adsorption isotherm that is applicable to heterogeneous surfaces.
Correct Answer: C — Freundlich isotherm
Learn More →
Q. What type of mechanism does the reaction of 2-bromopropane with a strong nucleophile follow?
-
A.
SN1
-
B.
SN2
-
C.
E1
-
D.
E2
Solution
The reaction of 2-bromopropane with a strong nucleophile typically follows the SN2 mechanism due to steric hindrance.
Correct Answer: B — SN2
Learn More →
Q. What type of polymer is formed by the polymerization of unsaturated monomers?
-
A.
Addition polymer
-
B.
Condensation polymer
-
C.
Natural polymer
-
D.
Biopolymer
Solution
Addition polymers are formed by the polymerization of unsaturated monomers.
Correct Answer: A — Addition polymer
Learn More →
Q. What type of polymer is formed from the polymerization of isoprene?
-
A.
Natural rubber
-
B.
Nylon
-
C.
Polyethylene
-
D.
Polystyrene
Solution
Natural rubber is formed from the polymerization of isoprene.
Correct Answer: A — Natural rubber
Learn More →
Q. What type of polymer is formed when amino acids link together?
-
A.
Polysaccharides
-
B.
Proteins
-
C.
Nucleic acids
-
D.
Lipids
Solution
Proteins are polymers formed by the linkage of amino acids through peptide bonds.
Correct Answer: B — Proteins
Learn More →
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
Solution
Addition polymerization involves the reaction of monomers with unsaturated bonds to form a polymer.
Correct Answer: A — Addition polymerization
Learn More →
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
Solution
Condensation polymerization involves the reaction of monomers with functional groups, resulting in the elimination of small molecules.
Correct Answer: B — Condensation polymerization
Learn More →
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
Solution
Condensation polymerization involves the elimination of a small molecule, such as water.
Correct Answer: B — Condensation polymerization
Learn More →
Q. What type of protein is hemoglobin?
-
A.
Enzyme
-
B.
Structural protein
-
C.
Transport protein
-
D.
Hormonal protein
Solution
Hemoglobin is a transport protein that carries oxygen in the blood.
Correct Answer: C — Transport protein
Learn More →
Q. What type of protein structure involves multiple polypeptide chains?
-
A.
Primary structure
-
B.
Secondary structure
-
C.
Tertiary structure
-
D.
Quaternary structure
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
Learn More →
Q. What type of reaction do alkanes typically undergo?
-
A.
Addition
-
B.
Substitution
-
C.
Elimination
-
D.
Hydrolysis
Solution
Alkanes typically undergo substitution reactions, especially with halogens.
Correct Answer: B — Substitution
Learn More →
Q. What type of reaction do alkenes typically undergo?
-
A.
Substitution
-
B.
Addition
-
C.
Elimination
-
D.
Redox
Solution
Alkenes typically undergo addition reactions due to the presence of double bonds.
Correct Answer: B — Addition
Learn More →
Q. What type of reaction forms a peptide bond?
-
A.
Hydrolysis
-
B.
Condensation
-
C.
Oxidation
-
D.
Reduction
Solution
A peptide bond is formed through a condensation reaction, where water is released.
Correct Answer: B — Condensation
Learn More →
Q. What type of reaction forms peptide bonds between amino acids?
-
A.
Hydrolysis
-
B.
Condensation
-
C.
Redox
-
D.
Substitution
Solution
Peptide bonds are formed through a condensation reaction, where a molecule of water is released.
Correct Answer: B — Condensation
Learn More →
Q. What type of reaction forms peptide bonds?
-
A.
Hydrolysis
-
B.
Condensation
-
C.
Oxidation
-
D.
Reduction
Solution
Peptide bonds are formed through a condensation reaction between amino acids.
Correct Answer: B — Condensation
Learn More →
Q. What type of reaction forms polymers from monomers?
-
A.
Hydrolysis
-
B.
Dehydration synthesis
-
C.
Redox reaction
-
D.
Condensation reaction
Solution
Dehydration synthesis is the reaction that links monomers together to form polymers by removing water.
Correct Answer: B — Dehydration synthesis
Learn More →
Q. What type of reaction occurs when 1-bromopropane reacts with potassium cyanide?
-
A.
Elimination
-
B.
Substitution
-
C.
Addition
-
D.
Redox
Solution
The reaction is a nucleophilic substitution where the cyanide ion replaces the bromine atom.
Correct Answer: B — Substitution
Learn More →
Q. What type of reaction occurs when 2-bromobutane is treated with sodium ethoxide?
-
A.
Nucleophilic substitution
-
B.
Elimination
-
C.
Addition
-
D.
Redox
Solution
The treatment of 2-bromobutane with sodium ethoxide leads to an elimination reaction, forming an alkene.
Correct Answer: B — Elimination
Learn More →
Q. What type of reaction occurs when alkenes are converted to alkanes?
-
A.
Addition
-
B.
Substitution
-
C.
Elimination
-
D.
Oxidation
Solution
The conversion of alkenes to alkanes involves the addition of hydrogen (hydrogenation).
Correct Answer: A — Addition
Learn More →
Q. What type of reaction occurs when alkenes react with hydrogen?
-
A.
Hydrolysis
-
B.
Hydrogenation
-
C.
Dehydrogenation
-
D.
Oxidation
Solution
The reaction of alkenes with hydrogen is called hydrogenation.
Correct Answer: B — Hydrogenation
Learn More →
Q. What type of reaction occurs when alkenes undergo hydrogenation?
-
A.
Addition
-
B.
Substitution
-
C.
Elimination
-
D.
Oxidation
Solution
Hydrogenation is an addition reaction where hydrogen is added across the double bond.
Correct Answer: A — Addition
Learn More →
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
Solution
The reaction between an alcohol and an acid to form an ether is a condensation reaction.
Correct Answer: C — Condensation
Learn More →
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
Solution
The reaction of an alkene with hydrogen in the presence of a catalyst is called hydrogenation.
Correct Answer: B — Hydrogenation
Learn More →
Q. What type of reaction occurs when an alkene reacts with hydrogen?
-
A.
Hydration
-
B.
Hydrogenation
-
C.
Dehydrogenation
-
D.
Halogenation
Solution
Hydrogenation is the addition of hydrogen to an alkene, converting it to an alkane.
Correct Answer: B — Hydrogenation
Learn More →
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
Solution
The reaction of an alkene with water in the presence of an acid is called hydrolysis.
Correct Answer: A — Hydrolysis
Learn More →
Q. What type of reaction occurs when an amine is treated with a haloalkane?
-
A.
Nucleophilic substitution
-
B.
Electrophilic addition
-
C.
Elimination
-
D.
Oxidation
Solution
The reaction between an amine and a haloalkane is a nucleophilic substitution reaction.
Correct Answer: A — Nucleophilic substitution
Learn More →
Q. What type of reaction occurs when an amine reacts with a nitrous acid?
-
A.
Substitution
-
B.
Elimination
-
C.
Decomposition
-
D.
Diazotization
Solution
The reaction of an amine with nitrous acid leads to diazotization, forming a diazonium salt.
Correct Answer: D — Diazotization
Learn More →
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
Solution
Chlorobenzene undergoes nucleophilic substitution to form phenol when treated with sodium hydroxide at high temperature.
Correct Answer: A — Nucleophilic substitution
Learn More →
Q. What type of reaction occurs when haloalkanes react with alcoholic KOH?
-
A.
Nucleophilic substitution
-
B.
Elimination
-
C.
Addition
-
D.
Redox
Solution
Haloalkanes react with alcoholic KOH primarily through nucleophilic substitution to form alcohols.
Correct Answer: B — Elimination
Learn More →
Showing 1471 to 1500 of 2620 (88 Pages)