Undergraduate MCQ & Objective Questions
The undergraduate level is a crucial phase in a student's academic journey, especially for those preparing for school and competitive exams. Mastering this stage can significantly enhance your understanding and retention of key concepts. Practicing MCQs and objective questions is essential, as it not only helps in reinforcing knowledge but also boosts your confidence in tackling important questions during exams.
What You Will Practise Here
Fundamental concepts in Mathematics and Science
Key definitions and theories across various subjects
Important formulas and their applications
Diagrams and graphical representations
Critical thinking and problem-solving techniques
Subject-specific MCQs designed for competitive exams
Revision of essential topics for better retention
Exam Relevance
Undergraduate topics are integral to various examinations such as CBSE, State Boards, NEET, and JEE. These subjects often feature a mix of conceptual and application-based questions. Common patterns include multiple-choice questions that assess both theoretical knowledge and practical application, making it vital for students to be well-versed in undergraduate concepts.
Common Mistakes Students Make
Overlooking the importance of understanding concepts rather than rote memorization
Misinterpreting questions due to lack of careful reading
Neglecting to practice numerical problems that require application of formulas
Failing to review mistakes made in previous practice tests
FAQs
Question: What are some effective strategies for solving undergraduate MCQ questions?Answer: Focus on understanding the concepts, practice regularly, and review your answers to learn from mistakes.
Question: How can I improve my speed in answering objective questions?Answer: Time yourself while practicing and gradually increase the number of questions you attempt in a set time.
Start your journey towards mastering undergraduate subjects today! Solve practice MCQs and test your understanding to ensure you are well-prepared for your exams. Your success is just a question away!
Q. Which of the following compounds is a ketone? (2023) 2023
A.
Propanal
B.
Butanone
C.
Benzaldehyde
D.
Ethanal
Show solution
Solution
Butanone is a ketone, characterized by having the carbonyl group (C=O) between two carbon atoms.
Correct Answer:
B
— Butanone
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Q. Which of the following compounds is a primary haloalkane?
A.
CH3CH2CH2Cl
B.
CH3Cl
C.
C2H5CCl3
D.
C6H5Cl
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Solution
CH3CH2CH2Cl is a primary haloalkane as the carbon attached to the halogen is bonded to only one other carbon.
Correct Answer:
A
— CH3CH2CH2Cl
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Q. Which of the following compounds is a product of the reaction between an aldehyde and a Grignard reagent?
A.
Alcohol
B.
Ketone
C.
Carboxylic acid
D.
Ester
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Solution
The reaction of an aldehyde with a Grignard reagent produces a primary alcohol.
Correct Answer:
A
— Alcohol
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Q. Which of the following compounds is a strong acid that contains hydrogen? (2022)
A.
HCl
B.
NaOH
C.
NH3
D.
H2O
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Solution
Hydrochloric acid (HCl) is a strong acid that contains hydrogen.
Correct Answer:
A
— HCl
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Q. Which of the following compounds is a tertiary amine? (2022)
A.
Methylamine
B.
Ethylamine
C.
Trimethylamine
D.
Aniline
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Solution
Trimethylamine is a tertiary amine as it has three alkyl groups attached to the nitrogen atom.
Correct Answer:
C
— Trimethylamine
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Q. Which of the following compounds is a typical example of a complex ion? (2022)
A.
NaCl
B.
CuSO4
C.
Ag(NH3)2+
D.
Fe2O3
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Solution
Ag(NH3)2+ is a complex ion formed by silver and ammonia.
Correct Answer:
C
— Ag(NH3)2+
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Q. Which of the following compounds is a typical example of a transition metal complex? (2022)
A.
NaCl
B.
CuSO4
C.
Fe(CN)6^4-
D.
MgO
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Solution
Fe(CN)6^4- is a typical example of a transition metal complex.
Correct Answer:
C
— Fe(CN)6^4-
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Q. Which of the following compounds is an amphoteric oxide? (2022)
A.
Na2O
B.
MgO
C.
Al2O3
D.
SiO2
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Solution
Aluminum oxide (Al2O3) is an amphoteric oxide, meaning it can react with both acids and bases.
Correct Answer:
C
— Al2O3
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Q. Which of the following compounds is an aromatic amine? (2019)
A.
Ethylamine
B.
Aniline
C.
Cyclohexylamine
D.
Propylamine
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Solution
Aniline is an aromatic amine as it contains a benzene ring attached to the amine group.
Correct Answer:
B
— Aniline
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Q. Which of the following compounds is an aryl halide? (2019)
A.
Chloroethane
B.
Bromobenzene
C.
Iodobutane
D.
Chloropropane
Show solution
Solution
Bromobenzene is an aryl halide as it contains a halogen atom bonded to an aromatic ring.
Correct Answer:
B
— Bromobenzene
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Q. Which of the following compounds is an example of a base? (2019)
A.
HCl
B.
NaOH
C.
H2SO4
D.
NH4Cl
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Solution
Sodium hydroxide (NaOH) is a strong base.
Correct Answer:
B
— NaOH
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Q. Which of the following compounds is an example of a coordination complex? (2022)
A.
NaCl
B.
CuSO4
C.
[Cu(NH3)4]SO4
D.
Fe2O3
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Solution
[Cu(NH3)4]SO4 is a coordination complex where copper is coordinated to ammonia ligands.
Correct Answer:
C
— [Cu(NH3)4]SO4
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Q. Which of the following compounds is an example of a covalent compound formed by a p-block element? (2022)
A.
NaCl
B.
MgO
C.
SiCl4
D.
CaF2
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Solution
SiCl4 is a covalent compound formed by silicon, a p-block element.
Correct Answer:
C
— SiCl4
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Q. Which of the following compounds is an example of a covalent compound? (2019)
A.
NaCl
B.
MgO
C.
SiO2
D.
CaF2
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Solution
SiO2 (silicon dioxide) is a covalent compound formed by the sharing of electrons between silicon and oxygen.
Correct Answer:
C
— SiO2
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Q. Which of the following compounds is an example of a haloarene? (2019)
A.
Chloroethane
B.
Bromobenzene
C.
Iodobutane
D.
Chloropropane
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Solution
Bromobenzene is a haloarene as it contains a halogen atom directly attached to an aromatic ring.
Correct Answer:
B
— Bromobenzene
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Q. Which of the following compounds is an example of a p-block element compound? (2020)
A.
NaCl
B.
MgO
C.
AlCl3
D.
CaF2
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Solution
AlCl3 is a compound formed from a p-block element (Aluminum) and is a classic example of p-block chemistry.
Correct Answer:
C
— AlCl3
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Q. Which of the following compounds is an example of an aromatic hydrocarbon? (2023)
A.
Cyclohexane
B.
Benzene
C.
Ethylene
D.
Propane
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Solution
Benzene is an aromatic hydrocarbon characterized by its stable ring structure and delocalized electrons.
Correct Answer:
B
— Benzene
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Q. Which of the following compounds is an isomer of butane? (2021)
A.
2-methylpropane
B.
Pentane
C.
Propane
D.
Ethane
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Solution
2-methylpropane is an isomer of butane, having the same molecular formula but a different structure.
Correct Answer:
A
— 2-methylpropane
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Q. Which of the following compounds is an isomer of butanol?
A.
2-Butanol
B.
1-Butanol
C.
Butyric acid
D.
Butene
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Solution
2-Butanol is an isomer of butanol, differing in the position of the hydroxyl group.
Correct Answer:
A
— 2-Butanol
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Q. Which of the following compounds is an unsaturated hydrocarbon? (2023)
A.
C2H6
B.
C3H8
C.
C2H4
D.
C4H10
Show solution
Solution
C2H4 (ethylene) is an unsaturated hydrocarbon as it contains a double bond.
Correct Answer:
C
— C2H4
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Q. Which of the following compounds is covalent? (2019)
A.
NaCl
B.
MgO
C.
H2O
D.
CaO
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Solution
H2O is a covalent compound formed by the sharing of electrons between hydrogen and oxygen atoms.
Correct Answer:
C
— H2O
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Q. Which of the following compounds is formed when magnesium reacts with oxygen? (2019)
A.
MgO
B.
MgO2
C.
Mg2O3
D.
Mg3O4
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Solution
Magnesium reacts with oxygen to form magnesium oxide (MgO).
Correct Answer:
A
— MgO
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Q. Which of the following compounds is formed when magnesium reacts with water? (2022)
A.
MgO
B.
Mg(OH)2
C.
MgCl2
D.
MgSO4
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Solution
When magnesium reacts with water, it forms magnesium hydroxide, Mg(OH)2.
Correct Answer:
B
— Mg(OH)2
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Q. Which of the following compounds is known for its antibacterial properties? (2023)
A.
Chlorhexidine
B.
Sodium chloride
C.
Glucose
D.
Fructose
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Solution
Chlorhexidine is an antiseptic that is effective against a wide range of bacteria and is commonly used in medical settings.
Correct Answer:
A
— Chlorhexidine
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Q. Which of the following compounds is least reactive in nucleophilic substitution reactions? (2023)
A.
1-bromopropane
B.
2-bromopropane
C.
3-bromopropane
D.
Benzyl bromide
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Solution
Benzyl bromide is less reactive in nucleophilic substitution due to the resonance stabilization of the benzyl cation formed during the reaction.
Correct Answer:
D
— Benzyl bromide
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Q. Which of the following compounds is least soluble in water? (2022)
A.
Chloroethane
B.
Bromobenzene
C.
Iodopropane
D.
Chlorobenzene
Show solution
Solution
Bromobenzene is least soluble in water due to its non-polar nature and the presence of the aromatic ring.
Correct Answer:
B
— Bromobenzene
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Q. Which of the following compounds is not an alcohol? (2023)
A.
Ethanol
B.
Methanol
C.
Phenol
D.
Isopropanol
Show solution
Solution
Phenol is not classified as an alcohol because it has an aromatic ring, while the others are aliphatic alcohols.
Correct Answer:
C
— Phenol
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Q. Which of the following compounds is not an alcohol? (2023) 2023
A.
Ethanol
B.
Methanol
C.
Phenol
D.
Isopropanol
Show solution
Solution
Phenol is not classified as an alcohol because it has an aromatic ring, while the others are aliphatic alcohols.
Correct Answer:
C
— Phenol
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Q. Which of the following compounds is responsible for ozone depletion? (2019)
A.
Methane
B.
Chlorofluorocarbons (CFCs)
C.
Carbon Dioxide
D.
Nitrous Oxide
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Solution
Chlorofluorocarbons (CFCs) are known to deplete the ozone layer by breaking down ozone molecules in the stratosphere.
Correct Answer:
B
— Chlorofluorocarbons (CFCs)
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Q. Which of the following compounds is responsible for ozone layer depletion? (2019)
A.
Methane
B.
Chlorofluorocarbons (CFCs)
C.
Carbon Dioxide
D.
Nitrous Oxide
Show solution
Solution
Chlorofluorocarbons (CFCs) are known to deplete the ozone layer by breaking down ozone molecules in the stratosphere.
Correct Answer:
B
— Chlorofluorocarbons (CFCs)
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