Q. Which of the following compounds can undergo nucleophilic substitution?
A.
Benzene
B.
Chloroethane
C.
Cyclohexane
D.
Ethylene
Show solution
Solution
Chloroethane can undergo nucleophilic substitution due to the presence of a good leaving group (Cl).
Correct Answer:
B
— Chloroethane
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Q. Which of the following compounds can undergo oxidation to form a ketone?
A.
1-Butanol
B.
2-Butanol
C.
Cyclohexanol
D.
Ethyl alcohol
Show solution
Solution
2-Butanol can be oxidized to form butanone (a ketone).
Correct Answer:
B
— 2-Butanol
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Q. Which of the following compounds can undergo polymerization to form polyethylene?
A.
Propylene
B.
Butylene
C.
Ethylene
D.
Isobutylene
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Solution
Ethylene can undergo addition polymerization to form polyethylene, a common plastic.
Correct Answer:
C
— Ethylene
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Q. Which of the following compounds cannot be oxidized?
A.
Aldehyde
B.
Primary alcohol
C.
Secondary alcohol
D.
Ketone
Show solution
Solution
Ketones cannot be oxidized further under normal conditions, unlike aldehydes and alcohols.
Correct Answer:
D
— Ketone
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Q. Which of the following compounds contains a p-block element?
A.
NaCl
B.
MgO
C.
AlCl3
D.
Fe2O3
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Solution
AlCl3 contains aluminum, which is a p-block element.
Correct Answer:
C
— AlCl3
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Q. Which of the following compounds contains hydrogen in a +1 oxidation state?
A.
H2O
B.
H2S
C.
NaH
D.
LiH
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Solution
In water (H2O), hydrogen has an oxidation state of +1.
Correct Answer:
A
— H2O
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Q. Which of the following compounds does NOT exhibit geometric isomerism?
A.
Cis-2-butene
B.
Trans-2-butene
C.
1,2-dichloroethene
D.
Ethane
Show solution
Solution
Ethane does not have a double bond or any substituents that would allow for geometric isomerism.
Correct Answer:
D
— Ethane
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Q. Which of the following compounds does NOT exhibit isomerism?
A.
C2H4
B.
C3H6
C.
C4H8
D.
C5H10
Show solution
Solution
C2H4 (ethylene) does not have enough carbon atoms to exhibit isomerism.
Correct Answer:
A
— C2H4
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Q. Which of the following compounds does NOT exhibit optical isomerism?
A.
Lactic acid
B.
Tartaric acid
C.
2-butanol
D.
Butane
Show solution
Solution
Butane does not have a chiral center and therefore does not exhibit optical isomerism.
Correct Answer:
D
— Butane
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Q. Which of the following compounds does NOT show optical isomerism?
A.
Lactic acid
B.
Tartaric acid
C.
2-Butanol
D.
Butane
Show solution
Solution
Butane does not show optical isomerism as it does not have a chiral center.
Correct Answer:
D
— Butane
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Q. Which of the following compounds exhibits geometric isomerism?
A.
1-butene
B.
2-butene
C.
butane
D.
cyclohexane
Show solution
Solution
2-butene has a double bond between the second and third carbon atoms, allowing for cis and trans isomers.
Correct Answer:
B
— 2-butene
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Q. Which of the following compounds exhibits hydrogen bonding?
A.
HCl
B.
NH3
C.
CH4
D.
NaCl
Show solution
Solution
NH3 exhibits hydrogen bonding due to the presence of a nitrogen atom bonded to hydrogen.
Correct Answer:
B
— NH3
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Q. Which of the following compounds exhibits sp3d hybridization?
A.
SF4
B.
XeF2
C.
NH3
D.
C2H4
Show solution
Solution
In SF4, the sulfur atom is sp3d hybridized, resulting in a seesaw molecular geometry.
Correct Answer:
A
— SF4
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Q. Which of the following compounds has a linear shape?
A.
H2O
B.
C2H2
C.
NH3
D.
CH4
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Solution
C2H2 (ethyne) has a linear shape due to sp hybridization of carbon.
Correct Answer:
B
— C2H2
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Q. Which of the following compounds has a trigonal planar geometry?
A.
CH4
B.
BF3
C.
NH3
D.
H2O
Show solution
Solution
BF3 has a trigonal planar geometry due to the sp2 hybridization of boron.
Correct Answer:
B
— BF3
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Q. Which of the following compounds has the highest boiling point?
A.
CH4
B.
C2H6
C.
C3H8
D.
C4H10
Show solution
Solution
C4H10 (butane) has the highest boiling point due to its larger molecular size and greater van der Waals forces.
Correct Answer:
D
— C4H10
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Q. Which of the following compounds has the highest electronegativity difference?
A.
HCl
B.
NaCl
C.
CO
D.
CH4
Show solution
Solution
Sodium chloride (NaCl) has the highest electronegativity difference between sodium and chlorine.
Correct Answer:
B
— NaCl
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Q. Which of the following compounds is a cyclic hydrocarbon?
A.
C6H12
B.
C5H10
C.
C4H8
D.
C3H6
Show solution
Solution
C6H12 can be cyclohexane, which is a cyclic hydrocarbon.
Correct Answer:
A
— C6H12
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Q. Which of the following compounds is a cycloalkane?
A.
C3H6
B.
C5H10
C.
C4H8
D.
C6H12
Show solution
Solution
C5H10 can be a cycloalkane (cyclopentane) as it forms a ring structure.
Correct Answer:
B
— C5H10
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Q. Which of the following compounds is a derivative of carboxylic acid?
A.
Alcohol
B.
Ester
C.
Aldehyde
D.
Ketone
Show solution
Solution
Esters are derivatives of carboxylic acids formed by the reaction of an acid and an alcohol.
Correct Answer:
B
— Ester
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Q. Which of the following compounds is a haloarene?
A.
Chloroethane
B.
Bromobenzene
C.
Iodobutane
D.
Fluoropropane
Show solution
Solution
Bromobenzene contains a benzene ring with a bromine substituent, making it a haloarene.
Correct Answer:
B
— Bromobenzene
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Q. Which of the following compounds is a ketone?
A.
CH3CHO
B.
C2H5OH
C.
C3H6O
D.
C4H8
Show solution
Solution
C3H6O is a ketone as it has a carbonyl group (C=O) between two carbon atoms.
Correct Answer:
C
— C3H6O
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Q. Which of the following compounds is a pair of structural isomers?
A.
C2H6 and C2H4
B.
C3H8 and C3H6
C.
C4H10 and C4H10
D.
C5H12 and C5H12
Show solution
Solution
C2H6 (ethane) and C2H4 (ethylene) have different molecular structures, thus they are structural isomers.
Correct Answer:
A
— C2H6 and C2H4
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Q. Which of the following compounds is a phenol?
A.
Benzyl alcohol
B.
Cyclohexanol
C.
Phenol
D.
Ethanol
Show solution
Solution
Phenol is an aromatic compound with a hydroxyl group directly attached to a benzene ring.
Correct Answer:
C
— Phenol
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Q. Which of the following compounds is a primary amine?
A.
CH3NH2
B.
(CH3)2NH
C.
(CH3)3N
D.
C6H5NH2
Show solution
Solution
CH3NH2 is a primary amine as it has one alkyl group attached to the nitrogen.
Correct Answer:
A
— CH3NH2
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Q. Which of the following compounds is a saturated hydrocarbon?
A.
C2H2
B.
C3H4
C.
C4H8
D.
C5H12
Show solution
Solution
C5H12 (pentane) is a saturated hydrocarbon with single bonds only.
Correct Answer:
D
— C5H12
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Q. Which of the following compounds is a strong acid formed from hydrogen?
A.
HCl
B.
H2O
C.
NH3
D.
CH4
Show solution
Solution
Hydrochloric acid (HCl) is a strong acid formed from hydrogen.
Correct Answer:
A
— HCl
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Q. Which of the following compounds is a strong electrolyte?
A.
Glucose
B.
Acetic acid
C.
Sodium chloride
D.
Urea
Show solution
Solution
Sodium chloride dissociates completely in solution, making it a strong electrolyte.
Correct Answer:
C
— Sodium chloride
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Q. Which of the following compounds is a strong field ligand?
A.
H2O
B.
NH3
C.
CN-
D.
Cl-
Show solution
Solution
CN- is a strong field ligand and causes large splitting of d-orbitals.
Correct Answer:
C
— CN-
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Q. Which of the following compounds is a strong oxidizing agent?
A.
H2O2
B.
NaCl
C.
FeCl3
D.
CuSO4
Show solution
Solution
Hydrogen peroxide (H2O2) is a strong oxidizing agent.
Correct Answer:
A
— H2O2
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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!