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. What type of plant is characterized by having seeds that are enclosed within a fruit? (2021)
A.
Gymnosperms
B.
Angiosperms
C.
Pteridophytes
D.
Bryophytes
Show solution
Solution
Angiosperms are characterized by having seeds enclosed within a fruit, which is a key feature of this group.
Correct Answer:
B
— Angiosperms
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Q. What type of plant tissue is primarily involved in storage? (2023)
A.
Xylem
B.
Phloem
C.
Parenchyma
D.
Collenchyma
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Solution
Parenchyma tissue is primarily involved in storage, as it can store starch, oils, and water.
Correct Answer:
C
— Parenchyma
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Q. What type of plant tissue is responsible for the growth in length of stems and roots? (2021)
A.
Permanent tissue
B.
Meristematic tissue
C.
Vascular tissue
D.
Ground tissue
Show solution
Solution
Meristematic tissue is responsible for the growth in length of stems and roots through cell division.
Correct Answer:
B
— Meristematic tissue
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Q. What type of plant tissue is responsible for the growth in length of the plant? (2021)
A.
Lateral meristem
B.
Apical meristem
C.
Permanent tissue
D.
Vascular tissue
Show solution
Solution
Apical meristem is responsible for the primary growth in length of the plant.
Correct Answer:
B
— Apical meristem
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Q. What type of plant tissue is responsible for the growth in length? (2021)
A.
Lateral meristem
B.
Apical meristem
C.
Permanent tissue
D.
Vascular tissue
Show solution
Solution
Apical meristem is responsible for the growth in length of the plant, found at the tips of roots and shoots.
Correct Answer:
B
— Apical meristem
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Q. What type of plants are known for having a dominant sporophyte generation? (2023)
A.
Bryophytes
B.
Pteridophytes
C.
Mosses
D.
Liverworts
Show solution
Solution
Pteridophytes have a dominant sporophyte generation, while bryophytes have a dominant gametophyte generation.
Correct Answer:
B
— Pteridophytes
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Q. What type of polymer is formed by the polymerization of isoprene? (2019)
A.
Natural rubber
B.
Nylon
C.
Polyethylene
D.
Teflon
Show solution
Solution
Natural rubber is formed by the polymerization of isoprene.
Correct Answer:
A
— Natural rubber
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Q. What type of polymer is nylon?
A.
Addition polymer
B.
Condensation polymer
C.
Natural polymer
D.
Composite polymer
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Solution
Nylon is a condensation polymer formed from the reaction of diamines and dicarboxylic acids.
Correct Answer:
B
— Condensation polymer
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Q. What type of polymer is rubber classified as? (2019)
A.
Thermoplastic
B.
Thermosetting
C.
Elastomer
D.
Composite
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Solution
Rubber is classified as an elastomer, which is a type of polymer that exhibits elastic properties.
Correct Answer:
C
— Elastomer
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Q. What type of reaction forms a disaccharide from two monosaccharides? (2022)
A.
Hydrolysis
B.
Condensation
C.
Oxidation
D.
Reduction
Show solution
Solution
A condensation reaction occurs when two monosaccharides combine to form a disaccharide, releasing water.
Correct Answer:
B
— Condensation
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Q. What type of reaction is involved in the conversion of an alkene to an alkane? (2023)
A.
Hydrogenation
B.
Dehydration
C.
Halogenation
D.
Oxidation
Show solution
Solution
Hydrogenation is the process of adding hydrogen to an alkene to convert it into an alkane.
Correct Answer:
A
— Hydrogenation
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Q. What type of reaction is the conversion of an alkene to an alkane? (2023)
A.
Hydrogenation
B.
Dehydration
C.
Halogenation
D.
Oxidation
Show solution
Solution
The conversion of an alkene to an alkane is called hydrogenation, where hydrogen is added across the double bond.
Correct Answer:
A
— Hydrogenation
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Q. What type of reaction occurs when 1-bromopropane reacts with sodium cyanide? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction between 1-bromopropane and sodium cyanide is a nucleophilic substitution reaction, resulting in the formation of propanenitrile.
Correct Answer:
B
— Substitution
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Q. What type of reaction occurs when 1-bromopropane reacts with sodium ethoxide? (2023)
A.
Elimination
B.
Nucleophilic substitution
C.
Addition
D.
Oxidation
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Solution
The reaction of 1-bromopropane with sodium ethoxide is a nucleophilic substitution reaction where the ethoxide ion replaces the bromine atom.
Correct Answer:
B
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chlorobutane is treated with aqueous KOH? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
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Solution
When 1-chlorobutane is treated with aqueous KOH, a nucleophilic substitution reaction occurs, resulting in the formation of butanol.
Correct Answer:
B
— Substitution
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Q. What type of reaction occurs when 1-chloropropane is treated with aqueous KOH? (2019)
A.
Nucleophilic substitution
B.
Elimination
C.
Addition
D.
Redox
Show solution
Solution
The reaction of 1-chloropropane with aqueous KOH leads to nucleophilic substitution, resulting in the formation of propanol.
Correct Answer:
A
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with aqueous KOH? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction of 1-chloropropane with aqueous KOH leads to an elimination reaction, forming propene.
Correct Answer:
B
— Substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with potassium cyanide? (2019)
A.
Nucleophilic substitution
B.
Electrophilic substitution
C.
Addition reaction
D.
Elimination reaction
Show solution
Solution
The reaction between 1-chloropropane and potassium cyanide is a nucleophilic substitution reaction, resulting in the formation of propanenitrile.
Correct Answer:
A
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with sodium cyanide? (2023)
A.
Elimination
B.
Nucleophilic substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction between 1-chloropropane and sodium cyanide is a nucleophilic substitution reaction where the cyanide ion replaces the chlorine atom.
Correct Answer:
B
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with sodium iodide in acetone? (2023)
A.
Elimination
B.
Nucleophilic substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction is a nucleophilic substitution (S_N2) where iodide ion replaces the chlorine atom.
Correct Answer:
B
— Nucleophilic substitution
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Q. What type of reaction occurs when 2-bromopropane is treated with aqueous KOH? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction of 2-bromopropane with aqueous KOH leads to an elimination reaction, forming propene.
Correct Answer:
A
— Elimination
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Q. What type of reaction occurs when an alcohol is oxidized? (2023)
A.
Reduction
B.
Dehydration
C.
Substitution
D.
Oxidation
Show solution
Solution
Oxidation of alcohols involves the loss of hydrogen or the gain of oxygen, leading to the formation of aldehydes, ketones, or carboxylic acids.
Correct Answer:
D
— Oxidation
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Q. What type of reaction occurs when an alkene reacts with hydrogen? (2023) 2023
A.
Hydrolysis
B.
Hydrogenation
C.
Dehydration
D.
Oxidation
Show solution
Solution
The reaction of an alkene with hydrogen is called hydrogenation.
Correct Answer:
B
— Hydrogenation
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Q. What type of reaction occurs when chlorobenzene is treated with magnesium in dry ether? (2019)
A.
Grignard reaction
B.
Nucleophilic substitution
C.
Electrophilic substitution
D.
Reduction reaction
Show solution
Solution
The reaction of chlorobenzene with magnesium in dry ether forms a Grignard reagent, which is a key step in organic synthesis.
Correct Answer:
A
— Grignard reaction
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Q. What type of reaction occurs when ethene is converted to ethane? (2020)
A.
Hydrogenation
B.
Dehydrogenation
C.
Halogenation
D.
Hydrolysis
Show solution
Solution
The conversion of ethene to ethane involves the addition of hydrogen, which is known as hydrogenation.
Correct Answer:
A
— Hydrogenation
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Q. What type of reaction occurs when ethene reacts with bromine?
A.
Substitution
B.
Addition
C.
Elimination
D.
Oxidation
Show solution
Solution
The reaction between ethene and bromine is an addition reaction, forming dibromoethane.
Correct Answer:
B
— Addition
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Q. What type of reaction occurs when haloalkanes react with aqueous KOH?
A.
Nucleophilic substitution
B.
Elimination
C.
Addition
D.
Redox
Show solution
Solution
Haloalkanes react with aqueous KOH primarily through nucleophilic substitution to form alcohols.
Correct Answer:
A
— Nucleophilic substitution
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Q. What type of reaction occurs when haloalkanes react with metals like magnesium?
A.
Substitution
B.
Elimination
C.
Addition
D.
Grignard formation
Show solution
Solution
The reaction of haloalkanes with metals like magnesium leads to Grignard formation, which is a key step in organic synthesis.
Correct Answer:
D
— Grignard formation
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Q. What type of reaction occurs when haloalkanes react with metals like zinc?
A.
Substitution
B.
Elimination
C.
Reduction
D.
Oxidation
Show solution
Solution
The reaction of haloalkanes with metals like zinc is a reduction reaction, forming alkanes.
Correct Answer:
C
— Reduction
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Q. What type of reaction occurs when haloalkanes react with nucleophiles? (2020)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
Haloalkanes typically undergo nucleophilic substitution reactions where the halogen is replaced by a nucleophile.
Correct Answer:
B
— Substitution
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